Task: Program Execution
Input (English): 13, 20, ['8733', '2963', 'n', 'Q', '6487', 'F', '6115', 'e', '8159', '3369', '323', 'A', 'M', 'V', '819', 'H', 'p', '4713', 'X', 'B', 'B']
Output (English): BX3174pH918VM