programming language python or c++

Use the "natural split" algorithm on the file split.txt and answer the following question:

How many elements are in the first list?

answer is not 201.

Split.txt

200 // number of data below 494 774 644 345 521 61 27 28 584 569 66 857 210 2 211 675 548 596 188 647 671 517 408 475 615 113 731 522 850 17 640 940 556 517 602 935 76 578 880 428 168 394 381 497 247 368 137 138 619 973 895 106 838 45 921 800 681 660 490 427 937 917 786 959 152 604 837 749 684 963 926 963 988 492 385 458 788 7 62 46 932 996 787 634 34 616 71 128 686 578 923 532 933 545 100 224 895 595 342 933 934 797 120 565 495 884 237 648 843 599 157 843 192 279 301 649 382 881 667 178 126 746 44 601 22 52 769 708 991 83 447 786 525 168 328 922 153 367 22 689 834 774 93 110 547 597 644 726 237 20 370 573 391 225 750 897 956 839 951 455 8 509 746 338 576 276 277 341 274 891 723 53 966 271 50 990 493 823 833 306 619 461 768 832 736 759 920 451 549 833 911 123 907 225 252 179 177 272 747 859