Task: Program Execution
Input (English): w, 4247, X, 1585, 2659, b, W, 9393, Y, 3945, n, n, x, 7907, 1049, 4799, 4093, y, c, b, 7805
Output (English): 1, 3, 6, 7, 9, 11, 12, 13, 18, 19, 20