Balls (кульки)

In a bag, there are balls of n different colors. You can draw several balls blindly from the bag. What is the maximum number of balls z1 you can draw such that none of them are of k1 specific colors? Also, determine the maximum number z2 of balls you can draw such that there might not be any balls of k2 specific colors.

Input Data

The first line contains the integers n (3 <= n <= 10), k1, k2, where 0 < k1, k2 < n. The second line provides the quantities of balls for each color, with each quantity ranging from one to 20 inclusive.

Output Data

Output the values z1, z2 on one line.

Examples