#include <cstdio>
#include <cstdlib>
#include <iostream>
#include <string>
#include <cmath>
using namespace std;

int main(int nNumberofArgs, char* pszArgs[])
{
int a, b, c;
cout<<"Enter sides of a triangle.\n";
cout<<"Enter side a: ";
cin>>a;
cout<<"Enter side b: ";
cin>>b;
cout<<"Enter side c: ";
cin>>c;
if ((a+c<b)||(a+b<c)||(b+c<a))
{
cout<<"0\n";
}
else if ((a==b)&&(a==c)&&(b==c))
{
cout<<"ravnostranen\n";
}
else if ((a==b)||(b==c)||(a==c))
{
cout<<"ravnobedren\n";
}
else
{
cout<<"raznostranen\n";
}
system("PAUSE");
return 0;
}