Task: Program Execution
Input (English): 4, 21, ['g', '799', '1971', '547', '141', '301', '5001', '4513', '565', '8397', '1283', 'q', 'A', '8701', 'x', '6021', '3999', 'C', 'Y', 'c', 'C', '1143']
Output (English): 5471413015001451356583971283qA8701x60213999CYcC