Task: Program Execution
Input (English): 4, 12, ['3507', 'x', 'r', 'Y', '9979', 'K', '8669', 'i', 'a', '463', 'E', '1397', '2903', 'x', '4933', '9819', 'C', 'k', 'r', 'T', '1889']
Output (English): 20508