#include<iostream>
using namespace std;
int main() {
	int t11,t12,t21,t22,t31,t32,t41,t42,t51,t52,t61,t62,t71,t72,maxday;
	cin >> t11 >> t12 >> t21 >> t22 >> t31 >> t32 >> t41 >> t42 >> t51 >> t52 >> t61 >> t62 >> t71 >> t72;
	int maxtime = 8;
	maxday = 0;
	if (t11+t12>maxtime) {
	    maxtime = t11 + t12;
	    maxday = 1;
    } else if (t21+t22>maxtime) {
    	maxtime = t21 + t22;
    	maxday = 2;
	} else if (t31+t32>maxtime) {
		maxtime = t31 + t32;
		maxday = 3;
	} else if (t41+t42>maxtime) {
		maxtime = t41 + t42;
		maxday = 4;
	} else if (t51+t52>maxtime) {
		maxtime = t51 + t52;
		maxday = 5;
	} else if (t61+t62>maxtime) {
		maxtime = t61 + t62;
		maxday = 6;
	} else if (t71+t72>maxtime) {
		maxtime = t71 + t72;
		maxday = 7;
	} else {
		maxday = 0;
	}
	cout << maxday << endl;
	return 0;
}