#include <bits/stdc++.h> 
using namespace std; 
int main(){ 
	int maxi,maxs = -1;
	for (int i = 1;i <= 7;i++){
	  	int yes,no; 
		cin>>yes>>no; 
	  	if (yes+no > maxs){ 
	  		maxs = yes+no; maxi = i; 
	  	} 
	} cout<<maxi; 
	return 0;
}

求大佬帮助