Task: Program Execution
Input (English): 5, 14, ['1489', '3739', '5955', '1839', 'G', 'Y', 'S', 'R', '7277', 'a', '2271', '3641', '223', 'x', '867', '1843', '7461', 'o', 'r', '3615', '7447']
Output (English): GYSR7277a22713641223x