Task: Program Execution
Input (English): 687 9407 B v 3947 1681 u 3401 I 9125 y 7463 e R x 1099 q m N 1821 8209 6289 i 619 4917 4865 2405 e 683 a e X
Output (English): 687, 9407, 2, 22, 3947, 1681, 21, 3401, 9, 9125, 25, 7463, 5, 18, 24, 1099, 17, 13, 14, 1821, 8209, 6289, 9, 619, 4917, 4865, 2405, 5, 683, 1, 5, 24