Task: Program Execution
Input (English): 1, ['661', 'p', '9959', '7077', '6133', '8649', 'F', '5223', '2269', '779', '5581', 'U', 'G', '1653', 'I', '3789', '9575', '8477', '4169', '3749', 'x', 'H', '7283']
Output (English): 661