Task: Program Execution
Input (English): U 9031 1103 c r o X 9549 7809 C Y g 3689 t G b 603 w x 8189 b 149 4741 A M 3511 l 3187 5549
Output (English): 1, 4, 5, 6, 7, 10, 11, 12, 14, 15, 16, 18, 19, 21, 24, 25, 27