#include <iostream>

using namespace std;

int main()
{
    int a,b,c,d,e,f;
    d=0;
    e=0;
    f=0;
    float ter;
    float atfog;
    float beirh;
    float koreirh;
    float kerulet;
    float s;
    cin >> a;
    cin >> b;
    cin >> c;

    if (a>b and a>c)
    {
        d=a;
    }
    else
    {
        if (a>b or a>c)
        {
            e=a;
        }
        else
        {
            if (a<b and a<c)
            {
                f=a;
            }
        }
    }

        if (b>a and b>c)
    {
        d=b;
    }
    else
    {
        if (b>a or b>c)
        {
            e=b;
        }
        else
        {
            if (b<a and b<c)
            {
                f=b;
            }
        }
    }

        if (c>b and c>a)
    {
        d=c;
    }
    else
    {
        if (c>b or c>a)
        {
            e=c;
        }
        else
        {
            if (c<b and c<a)
            {
                f=c;
            }
        }
    }
cout <<" A=" << a << "\n" <<" B=" << b << "\n" <<" C=" << c << "\n";

cout << "A legnagyobb: " << d << "\n";
cout << "A masodik: " << e << "\n";
cout << "A harmadik: " << f << "\n";


    if (d<(e+f) or e<(d+f) or f<(d+e))
    {
        cout << "Ez egy haromszog!" <<"\n";
        if (e*e+f*f==d*d)
        {
            cout << "Ez egy derekszogu haromszog! " << "\n";
            kerulet=d+e+f;
            cout << "Kerulet: " << kerulet << "\n";
            ter=(e*f)/2;
            cout << "Terulet: " << ter <<"\n";
            atfog=(2*ter)/7;
            cout << "Magassag: " << atfog << "\n";
            s=(d+e+f)/2;
            beirh=ter/s;
            cout << "Beirhato kor sugara: " << beirh << "\n";
            koreirh=d/2;
            cout << "Koreirhato kor sugara: " << koreirh << "\n";

        }
        else cout << " Ez nem egy derekszogu haromszog! " << "\n";
    }
    else
    {
        cout <<" Ez nem lehet egy haromszog!";
    }

return 0;
}