Task: Program Execution
Input (English): 1, 21, ['O', '2773', '6791', '4657', '6481', '6013', '2519', 'W', 'k', '9789', 'J', 'K', '3631', '9379', '7163', 'z', '3235', 'y', 'v', '5585', 'm']
Output (English): 68016