#include<bits/stdc++.h>
using namespace std;
struct anpai{
	int a;
	int b;
	int how;
	int su;
};
anpai week[8];
bool cmp(anpai a,anpai b){
	if(a.su==b.su){
		return b.how>a.how;
	}else{
		return a.su>b.su;
	}
}
int main(){
	for(int i=1;i<=7;i++){
		cin>>week[i].a>>week[i].b;
		week[i].how = i;
		week[i].su = week[i].a+week[i].b;
	}
	sort(week+1,week+1+7,cmp);
	if(week[1].su<8){
		cout<<0;
	}else{
		cout<<week[1].how;
	}
	return 0;
}

最后一个测试点WA，求改！！！