Task: Program Execution
Input (English): 4, 10, ['4509', '2697', 'G', 'r', 'y', '4077', 'X', 'O', 'h', 'L', 'd', '299', '7205', 'a', 'R', '5387', '5557', '7579']
Output (English): ry4077XOhL