include <bits/stdc++.h>

using namespace std;

int main() {

int a = 0, b = 0, c, d, e = 0;
for (int i = 1; i < 7; i++) {
	cin >> c >> d;
	e = c + d;
	if (a < e && e > 8) {
		a = e;
		b = i;
	}
}
cout << b << endl;
return 0;

}

include <bits/stdc++.h>

using namespace std;

int main() {

int a = 0, b = 0, c, d, e = 0;
for (int i = 1; i < 7; i++) {
	cin >> c >> d;
	e = c + d;
	if (a < e && e > 8) {
		a = e;
		b = i;
	}
}
cout << b << endl;
return 0;

}

include <bits/stdc++.h>

using namespace std;

int main() {

int a = 0, b = 0, c, d, e = 0;
for (int i = 1; i < 7; i++) {
	cin >> c >> d;
	e = c + d;
	if (a < e && e > 8) {
		a = e;
		b = i;
	}
}
cout << b << endl;
return 0;

}

include <bits/stdc++.h>

using namespace std;

int main() {

int a = 0, b = 0, c, d, e = 0;
for (int i = 1; i < 7; i++) {
	cin >> c >> d;
	e = c + d;
	if (a < e && e > 8) {
		a = e;
		b = i;
	}
}
cout << b << endl;
return 0;

}

include <bits/stdc++.h>

using namespace std;

int main() {

int a = 0, b = 0, c, d, e = 0;
for (int i = 1; i < 7; i++) {
	cin >> c >> d;
	e = c + d;
	if (a < e && e > 8) {
		a = e;
		b = i;
	}
}
cout << b << endl;
return 0;

}