Task: Program Execution
Input (English): 3, 7, ['a', '4143', 'B', 'A', 'H', 'd', 'M', '1751', 'b', '1689', '8185', '1993', '4853', 'e', '6177', '2285', '6469', 'r', '5819', '5317']
Output (English): 0