Task: Program Execution
Input (English): 1, 22, ['E', '4591', 'l', 'D', '5743', '4887', 'e', '2147', 'P', '5821', 'x', '9563', '4733', '4925', '133', '7381', 'B', 'M', 'x', '5071', 'q', 'a']
Output (English): aq1705xMB1837331529433743659x1285P7412e78843475Dl1954E