Task: Program Execution
Input (English): 7, 21, ['O', '6985', '9207', 'Z', 'f', '9925', 'U', 'S', '757', '141', 'v', 'S', 'E', 'K', 'd', 'd', 'i', 'A', '3519', '4491', 'o', '8435', '977', 'J']
Output (English): 8908