sjkfhai

#include<bits/stdc++.h>
using namespace std;
int main() {
int n, e;
double min = 0.0;
cin >> n;
int a[n + 10], b[n + 10];
for (int i = 1; i <= n; i++) {
cin >> a[i];
cin >> b[i];
}
for (int i = 1; i <= n; i++) {
if ( b[i] * 1.0 / a[i] > min ) {
min = b[i] * 1.0 / a[i];
e = i;
}
}
cout << e << endl;
return 0;
}