#include <iostream> using namespace std; int main(){ int n[3]{0,0},a[8]{999,0,0,0,0,0,0,0},l; for(int i=1;i<=7;i++){ cin>>l; cin>>a[i]; a[i]+=l; } for(int i=1;i<=7;i++){ if(a[i]>=8&&a[i]>n[2]){ n[1]=i; n[2]=a[i]; } } if(n[1]!=0){ cout<<n[1]; } else{ cout<<0; } return 0; }