Task: Program Execution
Input (English): 2, 5, ['c', '2137', '139', '4169', '4621', '1275', 'm', '5263', '7049', '63', 'k', 'O', '1985', '1549', '4213', '4697', 'k', '1039', 'M', '1257']
Output (English): 2137, m, O, k