Task: Program Execution
Input (English): 2, 6, ['5119', '541', '1021', '7719', '5603', 'U', 'E', '9411', 'Z', '4439', '2013', 'n', '8993', '5413', '7643', '8015', 'x', '807', '7575', '9225', 'e', '8149', 'F', 'D', '4779']
Output (English): U, 5603, 7719, 1021, 541