#include <iostream>
#include <vector>

using namespace std;

bool f(vector<int> v)
{
    bool rosnacy = true;
    bool malejacy = true;

    for(unsigned i = 1; i < v.size(); ++i)
    {
        if(v[i] < v[i - 1])
            rosnacy = false;
        if(v[i] > v[i - 1])
            malejacy = false;
        if(!rosnacy && !malejacy)
            return false;
    }
    return true;
}

int main()
{
    vector<int> wektor;
    wektor.resize(10);
    for(int i = 0; i < 10; ++i)
        wektor[i] = (i-5)*(i-5);
    cout << f(wektor) << endl;
    return 0;
}