Task: Program Execution
Input (English): 1, 13, ['6173', '261', 'y', '4873', '4439', '6033', 'c', '8001', 'K', 'x', 'j', '1815', 'T', '3313', '2815', '8609', '495', 'v', 'x', 'H', '885', '9485', '8195', 'G', '7085', '6973', 'm', '8805']
Output (English): 6173, 3313, m