Task: Program Execution
Input (English): 4, ['X', 'N', '7501', '6405', 'T', 'L', 'v', 'u', 'Y', '6101', 'H', 'M', '9803', 'E', '3627', '2703', 'Y', 'p', 'n', 'Z', '4353', '5471', 'E', 'Y']
Output (English): X, N, 7501, 6405