Task: Program Execution
Input (English): 15, 21, ['o', 'Q', 'c', '351', '4497', 'r', '4977', '7823', 'X', 'f', 'x', '4759', 'Y', 'Z', '2705', '8851', 'O', '8799', 'z', 'R', '4075']
Output (English): 2705, 8851, O, 8799, z, R, 4075