Task: Program Execution
Input (English): 6801 a 9851 V 8365 6453 k 8565 5129 6799 P W A p 4345 l 6523 z M E X k S 4221 8149 B 1741
Output (English): 6801, 9851, 8365, 6453, 8565, 5129, 6799, 4345, 6523, 4221, 8149, 1741