pt andu

#include <fstream>
using namespace std;
ifstream f("blackfriday.in");
ofstream g("blackfriday.out");
long long n,i,j,a[1001],b[1001];
int main()
{
    f>>n;
    for(i=1;i<=n;i++)
        f>>a[i];
    for(i=1;i<=n;i++)
        f>>b[i];
    j=1;
    for(i=2;i<=n;i++)
        if (a[j]*(a[i]-b[i])>(a[j]-b[j])*a[i])
            j=i;
    g<<j;
    return 0;
}