Task: Program Execution
Input (English): 4, 7, ['5073', 'u', 'X', '8299', '7719', 'p', 'r', 'u', '2837', 'f', 'e', 'v', 'C', 'b', 'U', '5197', 't', '9', 'G', '1373', 'K', '2857', 'x', '5377', '8081', '2441', '3841']
Output (English): 82997719pr