Task: Program Execution
Input (English): 21, 21, ['b', 'B', 'y', 'e', '6799', '2815', '8705', 'd', 'i', 'x', 'o', 'G', 'T', 'S', 'p', 'Q', '1179', '6821', '1839', 'W', 'A', 'Y']
Output (English): 0