Task: Program Execution
Input (English): 7, 8, ['5663', 'w', 's', '3199', 'n', '3529', 'y', 'k', 'h', 'U', '4931', 'r', 'q', '3833', 'a', 'b', '9627', 'k', '3431', 'f', '5617', '9669', 'h']
Output (English): ky