Task: Program Execution
Input (English): 3, 4, ['c', 'x', '8777', 'p', '1437', 'J', '6809', 'U', 'v', '3913', 'Z', 'F', '8123', 'u', '3081', '7875', 'Y', '9861', 'C', 'G', '4067', 'W', '6991', 'd']
Output (English): 8777, 6809, Z, 3081, C, 6991