#include <iostream>
#include <cmath>
using namespace std;
int main() {
    bool a;
    cout << "vvedite a: " << endl;
    cin >> a;
    bool b;
    cout << "vvedite b: " << endl;
    cin >> b;
    bool c;
    if (a == true && b == false) c = true;
    cout << c << endl;
    system ("pause");
    return 0;
}