2021/day2/day2.erl

   1 -module(day2).
   2
   3 -export ([solve/0, solve/1, solve/2]).
   4
   5 solve() ->
   6     solve(['1']),
   7     solve(['2']),
   8     init:stop().
   9
  10 solve(A) ->
  11     solve(A, get_data()).
  12
  13 solve(['1'], D) ->
  14     io:format("The solution to ~p puzzle1 is: ~p~n", [?MODULE, solve(1, D)]);
  15 solve(1, D) ->
  16     solution1(D);
  17 solve(['2'], D) ->
  18     io:format("The solution to ~p puzzle2 is: ~p~n", [?MODULE, solve(2, D)]);
  19 solve(2, D) ->
  20     solution2(D).
  21
  22 solution1(D) ->
  23     {X, Y} =
  24     lists:foldl(fun({Dir, Dis}, {X, Y}) ->
  25         case Dir of
  26             'up' -> {X, Y - Dis};
  27             'down' -> {X, Y + Dis};
  28             'forward' -> {X + Dis, Y}
  29         end
  30         end,
  31    {0, 0},
  32    D),
  33    X * Y.
  34
  35 solution2(D) ->
  36     {X, Y, _} =
  37     lists:foldl(fun({Dir, Dis}, {X, Y, Aim}) ->
  38         case Dir of
  39             'up' -> {X, Y, Aim - Dis};
  40             'down' -> {X, Y, Aim + Dis};
  41             'forward' -> {X + Dis, Y + (Dis * Aim), Aim}
  42         end
  43         end,
  44    {0,0,0},
  45    D),
  46    X * Y.
  47
  48 get_data() ->
  49 [
  50 {forward, 3},
  51 {down, 4},
  52 {forward, 3},
  53 {up, 4},
  54 {down, 4},
  55 {down, 6},
  56 {down, 3},
  57 {down, 1},
  58 {up, 7},
  59 {down, 7},
  60 {forward, 4},
  61 {forward, 7},
  62 {forward, 3},
  63 {down, 2},
  64 {forward, 5},
  65 {down, 7},
  66 {forward, 5},
  67 {up, 9},
  68 {down, 6},
  69 {forward, 8},
  70 {forward, 8},
  71 {down, 8},
  72 {forward, 7},
  73 {down, 9},
  74 {down, 4},
  75 {down, 6},
  76 {forward, 1},
  77 {down, 2},
  78 {down, 7},
  79 {up, 4},
  80 {forward, 8},
  81 {down, 5},
  82 {down, 7},
  83 {down, 1},
  84 {forward, 5},
  85 {down, 1},
  86 {up, 1},
  87 {forward, 5},
  88 {forward, 1},
  89 {down, 1},
  90 {forward, 3},
  91 {up, 4},
  92 {up, 4},
  93 {up, 8},
  94 {up, 1},
  95 {forward, 7},
  96 {down, 3},
  97 {forward, 3},
  98 {forward, 3},
  99 {down, 3},
 100 {down, 6},
 101 {down, 7},
 102 {forward, 4},
 103 {down, 2},
 104 {up, 3},
 105 {forward, 5},
 106 {forward, 1},
 107 {down, 3},
 108 {up, 3},
 109 {up, 4},
 110 {forward, 2},
 111 {forward, 6},
 112 {up, 1},
 113 {down, 9},
 114 {up, 3},
 115 {forward, 5},
 116 {forward, 2},
 117 {up, 9},
 118 {up, 2},
 119 {down, 5},
 120 {down, 5},
 121 {forward, 7},
 122 {forward, 1},
 123 {down, 7},
 124 {forward, 9},
 125 {forward, 8},
 126 {down, 7},
 127 {forward, 5},
 128 {forward, 4},
 129 {down, 5},
 130 {forward, 7},
 131 {forward, 3},
 132 {down, 2},
 133 {forward, 2},
 134 {forward, 2},
 135 {down, 1},
 136 {up, 8},
 137 {down, 2},
 138 {down, 2},
 139 {forward, 6},
 140 {up, 9},
 141 {forward, 6},
 142 {up, 6},
 143 {forward, 5},
 144 {forward, 5},
 145 {down, 2},
 146 {forward, 5},
 147 {up, 5},
 148 {forward, 5},
 149 {up, 4},
 150 {down, 1},
 151 {up, 5},
 152 {down, 2},
 153 {forward, 3},
 154 {down, 1},
 155 {forward, 2},
 156 {up, 4},
 157 {down, 6},
 158 {forward, 1},
 159 {forward, 6},
 160 {forward, 6},
 161 {forward, 8},
 162 {forward, 8},
 163 {forward, 3},
 164 {forward, 5},
 165 {down, 8},
 166 {up, 8},
 167 {down, 6},
 168 {down, 8},
 169 {forward, 8},
 170 {down, 6},
 171 {forward, 4},
 172 {down, 4},
 173 {forward, 7},
 174 {forward, 9},
 175 {down, 6},
 176 {up, 6},
 177 {forward, 6},
 178 {down, 9},
 179 {up, 7},
 180 {up, 9},
 181 {down, 1},
 182 {up, 5},
 183 {forward, 2},
 184 {forward, 3},
 185 {up, 6},
 186 {forward, 8},
 187 {forward, 7},
 188 {down, 4},
 189 {up, 8},
 190 {up, 2},
 191 {down, 2},
 192 {up, 3},
 193 {down, 2},
 194 {down, 8},
 195 {forward, 9},
 196 {up, 9},
 197 {forward, 7},
 198 {down, 9},
 199 {forward, 4},
 200 {forward, 3},
 201 {forward, 2},
 202 {down, 5},
 203 {forward, 3},
 204 {forward, 1},
 205 {down, 2},
 206 {forward, 3},
 207 {down, 7},
 208 {down, 8},
 209 {forward, 9},
 210 {down, 9},
 211 {forward, 2},
 212 {up, 5},
 213 {up, 2},
 214 {down, 8},
 215 {down, 1},
 216 {down, 7},
 217 {forward, 6},
 218 {down, 2},
 219 {forward, 9},
 220 {down, 6},
 221 {down, 9},
 222 {forward, 9},
 223 {down, 2},
 224 {up, 5},
 225 {forward, 2},
 226 {down, 7},
 227 {down, 6},
 228 {up, 1},
 229 {forward, 9},
 230 {up, 7},
 231 {down, 1},
 232 {forward, 5},
 233 {down, 5},
 234 {up, 2},
 235 {forward, 6},
 236 {forward, 2},
 237 {up, 9},
 238 {up, 7},
 239 {down, 2},
 240 {down, 1},
 241 {forward, 6},
 242 {down, 2},
 243 {forward, 9},
 244 {forward, 8},
 245 {forward, 2},
 246 {up, 1},
 247 {down, 7},
 248 {down, 7},
 249 {forward, 5},
 250 {forward, 9},
 251 {down, 5},
 252 {down, 5},
 253 {down, 5},
 254 {forward, 4},
 255 {up, 4},
 256 {down, 7},
 257 {up, 6},
 258 {forward, 3},
 259 {up, 5},
 260 {forward, 3},
 261 {forward, 6},
 262 {forward, 8},
 263 {down, 6},
 264 {forward, 4},
 265 {forward, 5},
 266 {up, 8},
 267 {down, 9},
 268 {down, 3},
 269 {down, 8},
 270 {forward, 8},
 271 {forward, 1},
 272 {down, 7},
 273 {down, 2},
 274 {forward, 8},
 275 {forward, 7},
 276 {up, 2},
 277 {down, 9},
 278 {forward, 2},
 279 {down, 6},
 280 {down, 7},
 281 {up, 2},
 282 {up, 7},
 283 {down, 6},
 284 {down, 8},
 285 {down, 2},
 286 {forward, 8},
 287 {down, 6},
 288 {up, 1},
 289 {down, 6},
 290 {down, 5},
 291 {down, 8},
 292 {down, 1},
 293 {down, 4},
 294 {down, 1},
 295 {down, 8},
 296 {up, 3},
 297 {forward, 1},
 298 {forward, 5},
 299 {forward, 2},
 300 {forward, 2},
 301 {down, 5},
 302 {down, 2},
 303 {down, 8},
 304 {up, 7},
 305 {forward, 2},
 306 {forward, 1},
 307 {forward, 4},
 308 {up, 4},
 309 {down, 5},
 310 {up, 4},
 311 {down, 8},
 312 {up, 5},
 313 {down, 6},
 314 {down, 8},
 315 {down, 8},
 316 {forward, 8},
 317 {forward, 5},
 318 {down, 1},
 319 {down, 2},
 320 {down, 4},
 321 {forward, 5},
 322 {up, 3},
 323 {forward, 3},
 324 {down, 7},
 325 {forward, 9},
 326 {down, 9},
 327 {down, 5},
 328 {forward, 5},
 329 {down, 9},
 330 {forward, 9},
 331 {down, 5},
 332 {up, 4},
 333 {up, 9},
 334 {forward, 1},
 335 {forward, 6},
 336 {forward, 9},
 337 {forward, 2},
 338 {up, 5},
 339 {forward, 9},
 340 {down, 8},
 341 {up, 2},
 342 {up, 9},
 343 {forward, 1},
 344 {down, 7},
 345 {down, 4},
 346 {down, 4},
 347 {up, 3},
 348 {forward, 6},
 349 {down, 1},
 350 {forward, 6},
 351 {forward, 3},
 352 {up, 3},
 353 {forward, 1},
 354 {down, 1},
 355 {up, 8},
 356 {up, 3},
 357 {forward, 9},
 358 {forward, 1},
 359 {forward, 8},
 360 {forward, 8},
 361 {up, 7},
 362 {forward, 2},
 363 {forward, 9},
 364 {down, 9},
 365 {down, 2},
 366 {down, 5},
 367 {down, 1},
 368 {forward, 9},
 369 {forward, 9},
 370 {up, 4},
 371 {forward, 6},
 372 {down, 3},
 373 {forward, 2},
 374 {forward, 5},
 375 {up, 4},
 376 {forward, 2},
 377 {up, 1},
 378 {up, 4},
 379 {up, 3},
 380 {up, 6},
 381 {up, 6},
 382 {down, 2},
 383 {up, 7},
 384 {down, 1},
 385 {down, 3},
 386 {forward, 3},
 387 {up, 5},
 388 {forward, 4},
 389 {down, 5},
 390 {forward, 9},
 391 {down, 2},
 392 {up, 5},
 393 {forward, 9},
 394 {down, 3},
 395 {down, 5},
 396 {forward, 3},
 397 {forward, 7},
 398 {forward, 9},
 399 {up, 2},
 400 {down, 6},
 401 {up, 6},
 402 {down, 8},
 403 {forward, 8},
 404 {down, 1},
 405 {forward, 3},
 406 {forward, 4},
 407 {up, 6},
 408 {up, 3},
 409 {forward, 6},
 410 {forward, 5},
 411 {forward, 2},
 412 {down, 7},
 413 {down, 1},
 414 {down, 5},
 415 {forward, 6},
 416 {down, 4},
 417 {down, 2},
 418 {forward, 7},
 419 {up, 9},
 420 {forward, 3},
 421 {down, 2},
 422 {up, 3},
 423 {down, 3},
 424 {down, 1},
 425 {up, 5},
 426 {down, 4},
 427 {forward, 1},
 428 {forward, 2},
 429 {forward, 2},
 430 {forward, 6},
 431 {forward, 2},
 432 {down, 2},
 433 {down, 8},
 434 {down, 1},
 435 {down, 2},
 436 {down, 7},
 437 {up, 7},
 438 {down, 7},
 439 {forward, 7},
 440 {forward, 7},
 441 {down, 8},
 442 {forward, 1},
 443 {down, 7},
 444 {down, 7},
 445 {down, 8},
 446 {up, 9},
 447 {down, 4},
 448 {up, 6},
 449 {forward, 7},
 450 {up, 2},
 451 {down, 8},
 452 {forward, 2},
 453 {down, 8},
 454 {forward, 4},
 455 {down, 4},
 456 {forward, 4},
 457 {up, 1},
 458 {down, 2},
 459 {forward, 6},
 460 {forward, 7},
 461 {forward, 8},
 462 {down, 2},
 463 {forward, 5},
 464 {forward, 1},
 465 {up, 9},
 466 {down, 8},
 467 {down, 2},
 468 {forward, 1},
 469 {down, 8},
 470 {forward, 2},
 471 {up, 2},
 472 {up, 3},
 473 {up, 7},
 474 {forward, 3},
 475 {forward, 3},
 476 {up, 3},
 477 {up, 5},
 478 {forward, 8},
 479 {down, 6},
 480 {forward, 6},
 481 {down, 2},
 482 {down, 7},
 483 {forward, 3},
 484 {forward, 6},
 485 {down, 5},
 486 {down, 6},
 487 {up, 4},
 488 {forward, 8},
 489 {up, 8},
 490 {down, 9},
 491 {forward, 7},
 492 {forward, 1},
 493 {down, 6},
 494 {up, 1},
 495 {down, 7},
 496 {forward, 4},
 497 {forward, 8},
 498 {down, 2},
 499 {forward, 8},
 500 {down, 3},
 501 {down, 5},
 502 {down, 5},
 503 {forward, 8},
 504 {down, 3},
 505 {up, 8},
 506 {down, 9},
 507 {forward, 2},
 508 {down, 9},
 509 {forward, 4},
 510 {up, 8},
 511 {forward, 4},
 512 {up, 1},
 513 {forward, 8},
 514 {forward, 2},
 515 {forward, 5},
 516 {down, 2},
 517 {down, 6},
 518 {up, 2},
 519 {down, 8},
 520 {forward, 9},
 521 {forward, 5},
 522 {forward, 6},
 523 {forward, 4},
 524 {down, 4},
 525 {down, 6},
 526 {up, 1},
 527 {forward, 3},
 528 {down, 6},
 529 {forward, 6},
 530 {forward, 1},
 531 {forward, 6},
 532 {forward, 9},
 533 {up, 6},
 534 {forward, 5},
 535 {down, 4},
 536 {forward, 5},
 537 {down, 8},
 538 {down, 7},
 539 {forward, 7},
 540 {up, 5},
 541 {down, 6},
 542 {forward, 4},
 543 {forward, 6},
 544 {forward, 5},
 545 {up, 4},
 546 {down, 3},
 547 {forward, 1},
 548 {down, 1},
 549 {forward, 6},
 550 {up, 1},
 551 {up, 1},
 552 {down, 7},
 553 {forward, 5},
 554 {forward, 1},
 555 {down, 2},
 556 {forward, 2},
 557 {down, 3},
 558 {down, 6},
 559 {down, 5},
 560 {down, 4},
 561 {forward, 2},
 562 {forward, 1},
 563 {down, 7},
 564 {forward, 9},
 565 {up, 6},
 566 {forward, 9},
 567 {forward, 2},
 568 {down, 1},
 569 {forward, 9},
 570 {forward, 4},
 571 {down, 1},
 572 {forward, 3},
 573 {up, 9},
 574 {down, 1},
 575 {down, 3},
 576 {down, 6},
 577 {down, 9},
 578 {forward, 3},
 579 {down, 8},
 580 {down, 3},
 581 {forward, 5},
 582 {forward, 1},
 583 {forward, 5},
 584 {forward, 2},
 585 {up, 4},
 586 {down, 6},
 587 {up, 7},
 588 {forward, 7},
 589 {down, 9},
 590 {forward, 6},
 591 {down, 4},
 592 {down, 1},
 593 {up, 8},
 594 {down, 4},
 595 {forward, 7},
 596 {forward, 5},
 597 {down, 5},
 598 {down, 2},
 599 {down, 1},
 600 {down, 4},
 601 {up, 5},
 602 {down, 8},
 603 {forward, 1},
 604 {forward, 2},
 605 {down, 9},
 606 {forward, 7},
 607 {down, 8},
 608 {forward, 5},
 609 {forward, 7},
 610 {forward, 2},
 611 {down, 6},
 612 {down, 5},
 613 {down, 6},
 614 {down, 7},
 615 {forward, 2},
 616 {up, 9},
 617 {down, 3},
 618 {forward, 1},
 619 {up, 6},
 620 {forward, 4},
 621 {down, 3},
 622 {up, 7},
 623 {forward, 9},
 624 {forward, 7},
 625 {down, 4},
 626 {up, 1},
 627 {forward, 6},
 628 {up, 4},
 629 {down, 1},
 630 {down, 4},
 631 {down, 2},
 632 {down, 5},
 633 {down, 4},
 634 {down, 7},
 635 {forward, 2},
 636 {down, 8},
 637 {down, 8},
 638 {forward, 9},
 639 {forward, 3},
 640 {down, 2},
 641 {down, 2},
 642 {forward, 2},
 643 {down, 9},
 644 {forward, 8},
 645 {up, 8},
 646 {down, 3},
 647 {forward, 4},
 648 {down, 9},
 649 {up, 2},
 650 {forward, 6},
 651 {forward, 2},
 652 {up, 6},
 653 {up, 7},
 654 {forward, 1},
 655 {forward, 2},
 656 {up, 2},
 657 {down, 8},
 658 {forward, 9},
 659 {down, 7},
 660 {forward, 1},
 661 {down, 6},
 662 {down, 8},
 663 {forward, 2},
 664 {down, 8},
 665 {forward, 6},
 666 {forward, 7},
 667 {forward, 8},
 668 {forward, 1},
 669 {up, 8},
 670 {down, 5},
 671 {forward, 8},
 672 {down, 3},
 673 {down, 6},
 674 {forward, 6},
 675 {down, 4},
 676 {down, 6},
 677 {forward, 8},
 678 {down, 3},
 679 {down, 4},
 680 {forward, 6},
 681 {forward, 1},
 682 {up, 1},
 683 {up, 3},
 684 {forward, 7},
 685 {forward, 2},
 686 {down, 1},
 687 {down, 7},
 688 {down, 3},
 689 {down, 4},
 690 {down, 3},
 691 {forward, 2},
 692 {forward, 4},
 693 {down, 6},
 694 {down, 2},
 695 {forward, 3},
 696 {down, 9},
 697 {down, 5},
 698 {down, 6},
 699 {down, 7},
 700 {down, 5},
 701 {down, 3},
 702 {forward, 5},
 703 {forward, 6},
 704 {down, 3},
 705 {down, 1},
 706 {up, 3},
 707 {down, 8},
 708 {down, 7},
 709 {down, 5},
 710 {up, 9},
 711 {down, 8},
 712 {down, 4},
 713 {down, 2},
 714 {forward, 4},
 715 {forward, 9},
 716 {forward, 1},
 717 {forward, 7},
 718 {down, 3},
 719 {down, 4},
 720 {up, 9},
 721 {down, 6},
 722 {forward, 9},
 723 {down, 4},
 724 {down, 2},
 725 {down, 5},
 726 {down, 3},
 727 {forward, 2},
 728 {forward, 9},
 729 {forward, 3},
 730 {down, 5},
 731 {up, 1},
 732 {down, 9},
 733 {forward, 9},
 734 {down, 7},
 735 {forward, 6},
 736 {down, 6},
 737 {down, 9},
 738 {down, 7},
 739 {down, 8},
 740 {down, 2},
 741 {up, 3},
 742 {forward, 6},
 743 {forward, 3},
 744 {up, 4},
 745 {down, 6},
 746 {down, 8},
 747 {down, 2},
 748 {down, 1},
 749 {up, 9},
 750 {down, 1},
 751 {down, 8},
 752 {forward, 5},
 753 {forward, 4},
 754 {forward, 9},
 755 {forward, 3},
 756 {forward, 9},
 757 {down, 5},
 758 {up, 9},
 759 {down, 6},
 760 {forward, 4},
 761 {down, 6},
 762 {forward, 4},
 763 {forward, 9},
 764 {down, 7},
 765 {up, 9},
 766 {up, 2},
 767 {forward, 5},
 768 {forward, 6},
 769 {up, 2},
 770 {forward, 8},
 771 {down, 6},
 772 {forward, 8},
 773 {forward, 1},
 774 {forward, 2},
 775 {forward, 6},
 776 {down, 3},
 777 {up, 2},
 778 {forward, 7},
 779 {up, 8},
 780 {forward, 2},
 781 {forward, 5},
 782 {forward, 4},
 783 {up, 6},
 784 {forward, 9},
 785 {up, 8},
 786 {down, 3},
 787 {up, 7},
 788 {up, 2},
 789 {down, 2},
 790 {up, 4},
 791 {up, 5},
 792 {forward, 5},
 793 {down, 9},
 794 {forward, 2},
 795 {down, 1},
 796 {down, 6},
 797 {down, 4},
 798 {down, 1},
 799 {down, 1},
 800 {forward, 4},
 801 {forward, 7},
 802 {down, 4},
 803 {down, 2},
 804 {forward, 7},
 805 {down, 4},
 806 {up, 1},
 807 {up, 8},
 808 {down, 6},
 809 {down, 8},
 810 {forward, 6},
 811 {down, 8},
 812 {up, 2},
 813 {down, 7},
 814 {forward, 5},
 815 {forward, 8},
 816 {down, 9},
 817 {forward, 1},
 818 {up, 7},
 819 {down, 5},
 820 {up, 1},
 821 {up, 6},
 822 {down, 3},
 823 {down, 4},
 824 {down, 9},
 825 {down, 6},
 826 {forward, 1},
 827 {down, 1},
 828 {forward, 4},
 829 {down, 4},
 830 {down, 8},
 831 {up, 1},
 832 {down, 7},
 833 {forward, 1},
 834 {down, 6},
 835 {down, 4},
 836 {down, 5},
 837 {forward, 6},
 838 {forward, 8},
 839 {down, 5},
 840 {down, 5},
 841 {up, 3},
 842 {forward, 8},
 843 {down, 4},
 844 {down, 3},
 845 {up, 1},
 846 {up, 8},
 847 {forward, 1},
 848 {down, 6},
 849 {down, 2},
 850 {down, 6},
 851 {down, 1},
 852 {forward, 9},
 853 {down, 1},
 854 {forward, 6},
 855 {forward, 9},
 856 {down, 5},
 857 {up, 4},
 858 {down, 5},
 859 {down, 1},
 860 {forward, 2},
 861 {down, 2},
 862 {forward, 9},
 863 {down, 3},
 864 {forward, 7},
 865 {forward, 8},
 866 {forward, 5},
 867 {down, 7},
 868 {down, 6},
 869 {down, 8},
 870 {forward, 7},
 871 {up, 7},
 872 {forward, 6},
 873 {forward, 3},
 874 {down, 2},
 875 {forward, 9},
 876 {forward, 4},
 877 {down, 6},
 878 {down, 6},
 879 {up, 9},
 880 {down, 1},
 881 {forward, 5},
 882 {forward, 2},
 883 {forward, 2},
 884 {forward, 2},
 885 {down, 8},
 886 {up, 1},
 887 {down, 4},
 888 {forward, 3},
 889 {down, 3},
 890 {up, 4},
 891 {down, 6},
 892 {forward, 2},
 893 {forward, 8},
 894 {forward, 9},
 895 {forward, 3},
 896 {down, 4},
 897 {forward, 2},
 898 {forward, 5},
 899 {down, 5},
 900 {up, 8},
 901 {up, 9},
 902 {up, 3},
 903 {forward, 9},
 904 {forward, 3},
 905 {forward, 3},
 906 {forward, 8},
 907 {forward, 2},
 908 {forward, 7},
 909 {down, 8},
 910 {down, 6},
 911 {forward, 6},
 912 {forward, 8},
 913 {down, 1},
 914 {forward, 3},
 915 {down, 7},
 916 {forward, 5},
 917 {forward, 3},
 918 {forward, 3},
 919 {down, 3},
 920 {down, 5},
 921 {down, 2},
 922 {down, 6},
 923 {up, 2},
 924 {up, 7},
 925 {down, 9},
 926 {forward, 6},
 927 {down, 9},
 928 {down, 8},
 929 {up, 8},
 930 {down, 1},
 931 {forward, 9},
 932 {down, 8},
 933 {forward, 7},
 934 {forward, 6},
 935 {down, 5},
 936 {down, 7},
 937 {down, 4},
 938 {forward, 7},
 939 {down, 8},
 940 {down, 9},
 941 {down, 4},
 942 {up, 8},
 943 {forward, 2},
 944 {up, 6},
 945 {forward, 6},
 946 {forward, 3},
 947 {forward, 6},
 948 {up, 9},
 949 {forward, 1},
 950 {down, 3},
 951 {up, 6},
 952 {down, 8},
 953 {up, 4},
 954 {up, 5},
 955 {forward, 8},
 956 {forward, 5},
 957 {forward, 3},
 958 {forward, 3},
 959 {forward, 4},
 960 {down, 4},
 961 {forward, 2},
 962 {up, 2},
 963 {down, 7},
 964 {down, 5},
 965 {forward, 7},
 966 {down, 8},
 967 {forward, 3},
 968 {up, 5},
 969 {down, 4},
 970 {down, 1},
 971 {down, 5},
 972 {forward, 6},
 973 {forward, 8},
 974 {forward, 6},
 975 {down, 2},
 976 {down, 7},
 977 {forward, 6},
 978 {forward, 2},
 979 {forward, 7},
 980 {down, 5},
 981 {forward, 2},
 982 {forward, 7},
 983 {down, 9},
 984 {down, 9},
 985 {down, 4},
 986 {down, 7},
 987 {down, 3},
 988 {forward, 1},
 989 {up, 8},
 990 {down, 7},
 991 {forward, 2},
 992 {forward, 4},
 993 {up, 2},
 994 {forward, 2},
 995 {down, 2},
 996 {up, 2},
 997 {up, 9},
 998 {forward, 1},
 999 {down, 5},
1000 {down, 1},
1001 {forward, 8},
1002 {up, 3},
1003 {up, 4},
1004 {down, 3},
1005 {up, 2},
1006 {down, 8},
1007 {down, 6},
1008 {down, 4},
1009 {up, 7},
1010 {forward, 4},
1011 {down, 7},
1012 {down, 4},
1013 {up, 3},
1014 {up, 8},
1015 {down, 1},
1016 {down, 7},
1017 {forward, 1},
1018 {down, 2},
1019 {forward, 6},
1020 {down, 9},
1021 {forward, 3},
1022 {down, 9},
1023 {up, 5},
1024 {up, 1},
1025 {down, 4},
1026 {forward, 1},
1027 {down, 4},
1028 {forward, 4},
1029 {up, 4},
1030 {forward, 7},
1031 {down, 9},
1032 {down, 2},
1033 {down, 8},
1034 {forward, 2},
1035 {up, 3},
1036 {forward, 2},
1037 {down, 7},
1038 {forward, 8},
1039 {forward, 6},
1040 {forward, 1},
1041 {up, 9},
1042 {forward, 7},
1043 {up, 4},
1044 {down, 4},
1045 {down, 3},
1046 {down, 7},
1047 {forward, 5},
1048 {forward, 3},
1049 {forward, 7}
1050 ].