#include<iostream>   #include<bits/stdc++.h>      using namespace std;      #define ll long long   #define pb push_back   #define mp make_pair   #define ff first   #define ss second   #define MOD 1000000007      // void func(){      // }      void solution(){     ll a,b; cin>>a>>b;     ll val = abs(a-b);     if(val==0){       cout<< 0 0 <<endl;       return;     }     ll count = min(val-(a%val),a%val);     cout<<val<<   <<count<<endl;   }      int main(){        ios_base::sync_with_stdio(false);     cin.tie(0);     cout.tie(0);        #ifndef ONLINE_JUDGE     freopen( input.txt ,  r , stdin);     freopen( output.txt ,  w , stdout);     #endif        int t;     cin>>t;     // func();     while(t--){       solution();     }        return 0;   }