Task: Program Execution
Input (English): U 2449 123 8839 2957 6807 6569 l 1379 p D 2577 1429 N x B 9109 9301 P Q r Y w 7565 473 k 5047 6329 D 1385 3039 2535 9973 4849 r v R 269 6741 n
Output (English): 21, 2449, 123, 8839, 2957, 6807, 6569, 12, 1379, 16, 4, 2577, 1429, 14, 24, 2, 9109, 9301, 16, 17, 18, 25, 23, 7565, 473, 11, 5047, 6329, 4, 1385, 3039, 2535, 9973, 4849, 18, 22, 18, 269, 6741, 14