#include <iostream>
#include <iomanip>
using namespace std;

int main()
{
	int x;
	cin >> x;
	if(x >= 10 && x <= 99) cout << "1" << endl;
	else cout << "0" << endl;
//	cout << fixed << setprecision(3) << x * 100 << "%" << endl;
//	return 0;
}

#include <iostream>
#include <iomanip>
using namespace std;

int main()
{
	int x;
	cin >> x;
	if(x >= 10 && x <= 99) cout << "1" << endl;
	else cout << "0" << endl;
//	cout << fixed << setprecision(3) << x * 100 << "%" << endl;
//	return 0;
}

#include <iostream>
using namespace std;
int n;
int main(){
	cin>>n;
	if(n>=10&&n<100) cout<<1;
	else cout<<0;
	return 0;
}

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

#include<bits/stdc++.h>
using namespace std;
int main(){
	int r;
	cin>>r;
	if ((r >= 10) && (r<=99))
        cout<<"1";
    else
        cout<<"0";
	return 0;
}//难点：水

#include<bits/stdc++.h>
#define ll long long
using namespace std;
int a;
int main(){
	cin>>a;
	if(a/100==0&&a/10>0) cout<<1<<"\n";
	else cout<<0<<"\n";
	return 0;
}