#include<iostream>
#include<cstdio>
#include<cstring>
#include<algorithm>
using namespace std;
typedef long long qword;
qword ext_gcd(qword a,qword b,qword &x,qword &y)
{
        if (a%b==0)
        {
                //a*x+b*y==b
                x=0;y=1;
                return y;
        }
        qword ret=ext_gcd(b,a%b,x,y);
        qword tx=x,ty=y;
        x=ty;
        y=tx-a/b*ty;
        return ret;
}
int main()
{
        //freopen("input.txt","r",stdin);
        //A=9973*x+n
        //(9973*x+n)=y*B
        //9973*x-B*y==-n
        qword n,a,b,x,y,yy,xx;
        int nn;
        scanf("%d",&nn);
        qword g;
        while (nn--)
        {
                scanf("%I64d%I64d",&n,&b);
                g=ext_gcd(9973,b,x,y);
                x*=-n;y*=n;
            //    cout<<9973*x-b*y<<endl;
                yy=(y%9973+9973)%9973;
                xx=x-(y-yy)/9973*b;
            //    cout<<9973*xx-b*yy<<endl;
                cout<<yy<<endl;
        }
}