Task: Program Execution
Input (English): 15, 20, ['J', 'k', '5677', 'u', 'A', '647', 'E', '9207', 'k', 'y', '8869', 'k', '4063', '8277', '8659', '3619', '4301', 'K', '9737', '7631']
Output (English): 7631, 9737, K, 4301, 3619, 8659