Task: Program Execution
Input (English): 13, ['6727', '3123', 'z', '4147', '6833', 'c', '1587', '8443', '7753', 'H', '9925', '681', '2779', '7893', 'U', 'f', '8883', 'v', '921', '1583', '8987', 'M', '5431', '3021', '7053', '3773']
Output (English): 7893, U, f, 8883, v, 921, 1583, 8987, M, 5431, 3021, 7053, 3773