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#include <bits/stdc++.h>

using namespace std;

int a[8], b[8], c[8], d[8];

int main() {

int t = 0;

for (int i = 1; i <= 7; i++) cin >> a[i] >> b[i];

for (int i = 1; i <= 7; i++) {

if (a[i] + b[i] > 8) {

    c[i] = a[i] + b[i];

    d[i] = i;

}

}

for (int i = 1; i <= 7; i++) {

if (c[t] < c[i])

    t = d[i];

}

cout << t;

return 0; }