Task: Program Execution
Input (English): 1, 9, ['C', 'B', 'f', '5261', '4047', '5707', 'q', 'u', '7203', 'y', '1931', 'l', '5797', 'Q', '5719', '8995', 't', 'q', 'i', '4609', 'Z', 'S', '6089', 'v', 'C']
Output (English): C, y, i