Task: Program Execution
Input (English): 8, 13, ['8301', '6251', 'W', '4405', 'W', '3909', 'Z', '6439', 'c', '1397', 's', '6837', '6909', '8057', '5471', '9989', 'w', 'w', 'Y', 'y', '6553', 'R', 'p', 'K', 'd', '4291']
Output (English): 69096837s1397c6439