Task: Program Execution
Input (English): 6891 9391 X Y c 5257 c 4711 6049 u E 9965 N a 7497 X V 483 u 9143 t 8113 z 5251 B L a 1275 1773 9307 b M
Output (English): 3, 4, 5, 7, 10, 11, 13, 14, 16, 17, 19, 21, 23, 25, 26, 27, 31, 32