Task: Program Execution
Input (English): 12, 18, ['5635', 'x', 'j', '3777', 'y', 'k', '869', 'u', 'P', 'a', '2111', '4981', 'y', '2035', 'b', 'k', 'N', 'W']
Output (English): W, N, k, b, 2035, y, 4981