#include<iostream>
#include<cstdio>
#include<cstring>
#include<string>
#include<cmath>
#include<algorithm>
#include<queue>
#include<cstdlib>
#include<vector>
#include<set>
using namespace std;
#define MOD 9973
int t,n,b,ans;
void egcd(int a,int b,int &x,int &y)
{
      if(b==0)
      {
            x=1;
            y=0;
            return ;
      }
      else
      {
            egcd(b,a%b,x,y);
            int t=x;
            x=y;
            y=t-a/b*y;
      }
}
int main()
{
      int x,y;
      scanf("%d",&t);
      while(t--)
      {
            scanf("%d%d",&n,&b);
            egcd(b,MOD,x,y);
            x=n*x;
            ans=(x%MOD+MOD)%MOD;
            printf("%d\n",ans);
      }
      return 0;
}