Task: Program Execution
Input (English): 6293 3427 7135 9709 3401 3805 l 523 Q 9075 C a 4211 9321 h 8819 t 2531 U m 7339 e T N X
Output (English): 1, 2, 3, 4, 5, 6, 8, 10, 13, 14, 16, 18, 21