Task: Program Execution
Input (English): 1, 3, ['t', '3129', '8787', 'A', 'i', 'B', '4013', 'u', '1325', '8309', '1169', 'u', 'M', 'g', 'j', '6905', 'L', '5243', '8073', 'l']
Output (English): 87873129t