Task: Program Execution
Input (English): 2367 9407 8845 2739 c W D 9905 2321 J S T 3141 3231 2051 7051 C c u M Y 5029 e 2891 7075 A E 9127 615 8881 x N V x
Output (English): 1, 2, 3, 4, 8, 9, 13, 14, 15, 16, 22, 24, 25, 28, 29, 30