AC cod

#include<bits/stdc++.h>
using namespace std;
int main()
{
    int a,b,c;
    cin>>a>>b>>c;
    if (a+b>c&&a+c>b&&b+c>a)
    {
        if (a*a+b*b==c*c)
            cout<<"zhijiao";
        else if (a*a+b*b<c*c)
            cout<<"dunjiao";
        else
            cout<<"ruijiao";
    }
    else
    {
        cout<<"no";
    }
    return 0;
}