Task: Program Execution
Input (English): 1, ['4611', 't', '4149', '2167', '9029', 'I', '5439', '4461', 'd', 'f', '8117', 'k', 'u', 'v', 'v', 'J', '6375', 'I', 'v', '9959', '521', '1923']
Output (English): 4611