#include<bits/stdc++.h>
using namespace std;
main(){
	int a1,a2,a3,a4,a5,a6,a7,b1,b2,b3,b4,b5,b6,b7,c1,c2,c3,c4,c5,c6,c7;
	cin>>a1>>b1;
	cin>>a2>>b2;
	cin>>a3>>b3;
	cin>>a4>>b4;
	cin>>a5>>b5;
	cin>>a6>>b6;
	cin>>a7>>b7;
	c1=a1+b1;
	c2=a2+b2;
	c3=a3+b3;
	c4=a4+b4;
	c5=a5+b5;
	c6=a6+b6;
	c7=a7+b7;
	int a,b;
	if(c1>c2){
		a=c1;c1=c2;c2=a;b=1;
	}
	
	
	if(c2>c3){
		a=c1;c1=c2;c2=a;b=2;
	}
	
	
	if(c3>c4){
		a=c1;c1=c2;c2=a;b=3;
	}
	
	
	if(c4>c5){
		a=c1;c1=c2;c2=a;b=4;
	}
	
	
	
	if(c5>c6){
		a=c1;c1=c2;c2=a;b=5;
	}
	
	
	
	if(c6>c7){
		a=c1;c1=c2;c2=a;b=6;
	}
	
	
	cout<<b;
	
}