Task: Program Execution
Input (English): 23, 26, ['c', '2231', 'f', '4261', 'x', '8511', '6147', 'n', 'M', '4859', 'p', '1033', '2031', 'A', 'c', '377', '4309', 'r', '7031', 'i', '3619', '3767', '2001', 'g', 'u', 'C', '341', '4457', 'y', '2221']
Output (English): Cug1002