Task: Program Execution
Input (English): 18, 19, ['o', 'L', 'M', 'J', '3837', 'Q', '2447', 'c', 'r', 't', '1259', 'b', 't', 's', '5991', '5505', '7573', '6591', '815', '4117', 'd']
Output (English): 8156591