tocka

#include <iostream>

using namespace std;

int main()
{
    int px, py, a, b;
    cin >> px >> py >> a >> b;
    int tx, ty;
    cin >> tx >> ty;

    if ((tx>=px && tx<=px+a) and (ty>=py && ty<=py+b))
    {
        if (tx==px||tx==px+a or ty==py||ty==py+b) cout << "strana";
        else cout << "vnatre";
    }
    else cout << "nadvor";
    return 0;
}