Task: Program Execution
Input (English): u M E D 9555 R C 8911 R F e 3983 J K 2517 9417 3745 Z R X 311 L Q 2501 t O 7483 Q 6859 M l o
Output (English): 1, 2, 3, 4, 6, 7, 9, 10, 11, 13, 14, 18, 19, 20, 22, 23, 25, 26, 28, 30, 31, 32