#include<iostream>

using namespace std;

bool hasTriangles(double arr1[],double arr2[], double arr3[], int n)
{
    for (int i = 0; i < n; i++)
    {
        for (int j = 0; j < n; j++)
        {
            for (int r = 0; r < n; r++)
            {
                if(arr1[i] > arr2[j] && arr1[i] > arr3[r])
                {
                    if(arr1[i]*arr1[i] == arr2[j]*arr2[j] + arr3[r]*arr3[r])
                    {
                        return 1;
                    }
                }else if(arr2[j] > arr1[i] && arr2[j] > arr3[r])
                {
                    if(arr2[j]*arr2[j] == arr1[i]*arr1[i]+ arr3[r]*arr3[r])
                    {
                        return 1;
                    }
                }else if(arr3[r] > arr1[i] && arr3[r] > arr2[j])
                {
                    if(arr3[r]*arr3[r] == arr1[i]*arr1[i]+ arr2[j]*arr2[j])
                    {
                        return 1;
                    }
                }
            }
        }
    }
    return 0;
}

int main()
{
    int n;
    cin >> n;
    double arr1[100] = {1, 5, 3};
    double arr2[100] = {2, 4};
    double arr3[100] = {6, 3, 0};

    cout << hasTriangles(arr1, arr2, arr3, n);

}