Task: Program Execution
Input (English): d 4221 t z L 3423 7681 R J A s N q U 7823 8269 I z 8341 U U x y 587 5487 3129 5307
Output (English): 4221, 3423, 7681, 7823, 8269, 8341, 587, 5487, 3129, 5307