Task: Program Execution
Input (English): 14, 21, ['127', 'y', 'x', 'i', 'Z', 'l', '1427', 'O', '2291', 'P', '429', '4115', 'C', 's', '4065', 'M', '6453', 'C', '9475', 'Q', '6545', 'j', 'W', '7117', 'h', '7965', 'U', '5121', '3381', '4175']
Output (English): 5456Q5749C3546M5604s