Task: Program Execution
Input (English): 1, 15, ['2975', '9609', 'O', 'd', 'B', 'X', 'A', '905', '1879', 'B', 'Y', '2157', '845', '4885', '3971', '8113', 'z', '171', 'c', 'Y', '4973', '7755', '9231', '223']
Output (English): 3971, 4885, 845, 2157, Y, B, 1879, 905, A, X, B, d, O, 9609, 2975