Task: Program Execution
Input (English): 4, 18, ['8157', 'o', 'F', 'n', '4525', '5299', 'k', 'E', '917', 'H', '5039', 'b', '7389', 'k', 'D', 'a', 'j', 'X']
Output (English): n45255299kE917H5039b7389kDajX