Task: Program Execution
Input (English): e 8923 C 7927 Y 9715 U 4673 M 7301 z 3121 I 4783 9185 t 6145 z X 3521 6409 2229 891 w z j
Output (English): 2, 4, 6, 8, 10, 12, 14, 15, 17, 20, 21, 22, 23