Task: Program Execution
Input (English): 3, 4, ['9567', '9317', 'l', 'n', 'i', '6993', '2775', '2651', '1311', '2955', '6271', 'b', '7333', 'U', 'd', '6455', 'n', 'o', '1871', 'u']
Output (English): 0