1.3.19

#include <iostream>
using namespace std;

int main() {
    // No II.19

    setlocale(LC_ALL, "Russian");

    double a, b, c;
    bool rb;

    cout << "Enter a, b, c = ";
    cin >> a >> b >> c;
    cout << endl;

    rb = a == b || a == c || b == c;

    cout << "Result = "<< (rb ? "Равнобедренный" : "Не равнобедренный") << endl;
    return 0;
}