Task: Program Execution
Input (English): 7, 9, ['7571', 's', '1793', 'J', 'r', '1523', '8891', 'J', '6397', '593', '3871', 'N', 'l', 'C', 'c', '2647', '7251', 'D', 'o', 'G', 'f', 'E', '469', 'X', 'l']
Output (English): 7936J1988