Task: Program Execution
Input (English): Y 91 2149 5699 X 2769 3743 b 7581 k 4269 a 7925 A d Q X a 3853 4107 Y q u 3093 o C f 3581 4309 4417 X 3921 w 3789 A K
Output (English): 25, 91, 2149, 5699, 24, 2769, 3743, 2, 7581, 11, 4269, 1, 7925, 1, 4, 17, 24, 1, 3853, 4107, 25, 17, 21, 3093, 15, 3, 6, 3581, 4309, 4417, 24, 3921, 23, 3789, 1, 11