代码：

#include<iostream>
using namespace std;
int main() {
	int a[1000001];
	int b[10000001];
	int n, s = 0;
	int x, y;
	for (int i = 0; i < 7; i++) {
		cin >> x >> y;
		a[i] = x + y;
	}
	s = 0;
	for (int i = 0; i < 7; i++) {
		if (a[i]>8&&a[s] < a[i]) {
			s = i;
		}
	}
	cout << s+1;
	return 0;
}

12测试点没过，还能救吗囧