Task: Program Execution
Input (English): 18, 21, ['7239', '519', 'r', 'i', '7235', '1237', '8725', '5423', 's', '9455', '9641', '9525', '7489', '9897', 'V', 'L', '9011', 'E', 'p', '4861', '1255', 'Y', 'v', 'W']
Output (English): Ep48611255