Task: Program Execution
Input (English): 2, ['X', 'k', '3197', '5997', '8371', 'C', '5673', 'U', '8789', '6769', 'H', '4621', 'h', '3955', 'f', '3563', 'a', '7533', '6081', 'b', 'X']
Output (English): X, k