Task: Program Execution
Input (English): U 2141 t p 5917 7061 3815 q 3935 4435 W 1059 8013 8261 2285 809 7211 o 3075 D Z u q 341 9765 8069 6403 F U e x v
Output (English): 2, 5, 6, 7, 9, 10, 12, 13, 14, 15, 16, 17, 19, 24, 25, 26, 27