Task: Program Execution
Input (English): 4, ['2457', '3679', 'k', '3045', '2453', '1989', '1795', '1215', 'k', 'i', '6765', 's', '897', 'D', '4131', 'B']
Output (English): 2453, 1989, 1795, 1215, k, i, 6765, s, 897, D, 4131, B