#include<iostream>
using namespace std;
int main ()
{
	int a; 
	cin >> a;
	if(a>=10&&a<=99)
	{
		cout << 1;
	}
	else{
		cout << 0;
	}
}

using namespace std;
int main()
{
	int n;
	cin >> n;
	if (n >10&&n<=99)
        cout << 1;
	else 
        cout << 0;
	return 0;
}

#include<iostream>
using namespace std;
int main()
{
	int n;
	cin >> n;
	if (n > 10 && n <= 99)cout << 1;
	else cout << 0;
	return 0;
}