dem21.n2

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

bool f(bool x, bool y, bool z, bool w) {
    bool A = x || y;
    bool B = (y != z);
    //bool B = !(y == z)
    bool C = !w;
    return A && B && C;
}

int main()
{
    vector <bool> v = {0,1};
    for (bool x: v) {
        for (bool y: v) {
            for (bool z: v) {
                for (bool w: v) {
                    bool F = f(x,y,z,w);
                    if (F) {
                        cout << x << ' ' << y << ' ' << z << ' ' << w << "\n";
                    }
                }
            }
        }
    }
}