Task: Program Execution
Input (English): 1, ['8509', '8307', '5775', 'V', '803', 'd', '9267', 'i', '9717', '9099', '2609', 'c', '8635', 'R', '5171', '3551', 's', 'p', 'M', 'R', '7779', '9765', 'D', 'L', 'C']
Output (English): 8509