Task: Program Execution
Input (English): 19, 20, ['j', 'h', '2663', 'x', '3651', '6291', '6033', 'r', '3325', 'c', '5857', 'c', 'j', '5007', 'E', 'q', 'b', '3473', 'f', '4273']
Output (English): 4273f