救救我，最后一个WA

#include<bits/stdc++.h>
using namespace std;
struct jj{
	int id;
	int school;
	int fd;
}a[10];
int main(){
	int baday=-1;
	int badayid;
	for(int i=1;i<=7;i++){
		a[i].id=i;
		cin>>a[i].school>>a[i].fd;
	}
	for(int i=1;i<=7;i++){
		if(a[i].school+a[i].fd==baday){
			continue;
		}
		if(a[i].school+a[i].fd>baday){
			badayid=i;
			baday=a[i].school+a[i].fd;
		}	
	}
	cout<<badayid;
	return 0;
}