Task: Program Execution
Input (English): 21, 28, ['U', 'c', '5275', 'u', '9365', '2819', '8295', 'S', 'n', 'X', 'o', '8139', 'G', '7499', '9127', 'O', 'u', 'G', '535', '4857', 'K', 'W', '6725', 'q', '115', '4781', '4709', 'C', 'M']
Output (English): C90741874511q5276WK