#include<iostream>

using namespace std;

int main()
{
    double arr[1000];
    bool middleNumIsBigger = true;
    int counter = 0;
    double a = 2;

    while (a > 0)
    {
        cin >> a;
        arr[counter] = a;
        counter++;

    }

    for (int i = 0; i < counter; i++)
    {
        if(i % 2 != 0 && arr[i] != 0)
        {

            if (i == counter - 1)
            {
                if (arr[i] <= arr[i-1])
                    middleNumIsBigger = false;
            }
            else if (arr[i] <= arr[i-1] || arr[i] <= arr[i+1])
                middleNumIsBigger = false;

        }
    }
    cout << middleNumIsBigger;
}