Round House

废龙小朋友居住在一间圆形的房屋里。这所房屋的所有门都被用数字1~n标号了。门口n与门口1是连起来的。 现在给你3个数n,a,b，废龙的房子有n个门口，他打算从门口a开始走过b个门口，问你最后废龙会站在哪个门口前面。 若b为负数，就是指废龙要倒♂车，即，他要倒着走。 样例1的解释：  一共有6个门口，从2号门口开始，走-5个门口，最后停在了3号门口。

Vasya lives in a round building, whose entrances are numbered sequentially by integers from $ 1 $ to $ n $ . Entrance $ n $ and entrance $ 1 $ are adjacent. Today Vasya got bored and decided to take a walk in the yard. Vasya lives in entrance $ a $ and he decided that during his walk he will move around the house $ b $ entrances in the direction of increasing numbers (in this order entrance $ n $ should be followed by entrance $ 1 $ ). The negative value of $ b $ corresponds to moving $ |b| $ entrances in the order of decreasing numbers (in this order entrance $ 1 $ is followed by entrance $ n $ ). If $ b=0 $ , then Vasya prefers to walk beside his entrance. Illustration for $ n=6 $ , $ a=2 $ , $ b=-5 $ .Help Vasya to determine the number of the entrance, near which he will be at the end of his walk.

The single line of the input contains three space-separated integers $ n $ , $ a $ and $ b $ ( $ 1<=n<=100,1<=a<=n,-100<=b<=100 $ ) — the number of entrances at Vasya's place, the number of his entrance and the length of his walk, respectively.

Print a single integer $ k $ ( $ 1<=k<=n $ ) — the number of the entrance where Vasya will be at the end of his walk.

6 2 -5

3

5 1 3

4

3 2 7

3

The first example is illustrated by the picture in the statements.