Task: Program Execution
Input (English): 1, 10, ['B', 'Z', 'B', 'z', 'H', 'b', 'V', '9391', '4753', 'A', 'S', '4851', '8779', 'L', 'O', 't', '1681', '8657', '5183', 'a', 'e']
Output (English): B, S, e