A

#include <bits/stdc++.h>
using namespace std;

#define int long long int
#define double long double
#define endl '\n'

const int MOD = 1000000007;

void solve(){
    int ans = 0;
    int pt = 0;
    for (int i = 1; i <= 22; i++) {
        int a,b;
        cin>>a>>b;
        int points = a + 20*b;
        if (points>pt){
            pt = points;
            ans = i;
        }
    }
    cout<<ans<<endl;
}

signed main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);cout.tie(0);

    int t=1;
    cin>>t;
    while(t--){
        solve();
    }

    return 0;
}