Task: Program Execution
Input (English): Y 8457 9543 4723 9697 5839 f o 4315 3993 1061 f z 6947 M 4757 8109 2725 4517 U 3375 5905 1429 4683 4393 W 3757 J 3473 3709
Output (English): 25, 8457, 9543, 4723, 9697, 5839, 6, 15, 4315, 3993, 1061, 6, 26, 6947, 13, 4757, 8109, 2725, 4517, 21, 3375, 5905, 1429, 4683, 4393, 23, 3757, 10, 3473, 3709