Function kzo

user/codeforces/7C.Line.cpp:7–20

long long x,y;

int kzo(int a,int b)
{
	if(b==0)
	{
		x=1;
		y=0;
		return a;
	}
	long long tmp=kzo(b,a%b);
	long long t=x;
	x=y;
	y=(t-a/b*y);
	return tmp;
}

int main()
{