2015 HUAS Summer Trainning #6~I

#include<iostream>
#include<cstring>
#include<cstdio>
using namespace std;
long long gcd(long long a,long long b,long long &x,long long &y)
{

    if(b==0)  {
        x=1;y=0;
        return a;
    }
    else{
    long long d=gcd(b,a%b,x,y);
    long long temp=x;
    x=y;
    y=temp-a/b*y;
    return d;
    }

}
int main()
{

    long long x,y,a,b;
    while(cin>>a>>b)
    {
        long long ans=gcd(a,b,x,y);
        if(1%ans)
            printf("sorry\n");
        else{
            while(x<0)
                x+=b,y-=a;
            printf("%d %d\n",x,y);
        }


    }
    return 0;
}