Triangle

#include<bits/stdc++.h>
using namespace std;
int main()
{
    long long int a,b,c,i,x,y,z;
    cin >> a >> b >> c;
    x = max(a,max(b,c));
    y = max(a,min(b,c));
    z =a+b+c-x-y;
    if(x>=y+z)
        cout << "Invalido" << endl;
    else
    {
        if(x==z && z==y)
            cout << "Valido-Equilatero" <<endl;
        else if(x!=y && y!=z && x!=z)
            cout << "Valido-Escaleno" << endl;
        else
            cout << "Valido-Isoceles" << endl;
        if(x*x==(y*y+z*z))
            cout << "Retangulo: S" << endl;
        else
            cout << "Retangulo: N" << endl;
    }
    return 0;
}