#include
using namespace std;
int main() {
float a, b, c;
cin >> a;
cin >> b;
cin >> c;
if (a > b && a > c)
{
cout << "the greatest no. is " << a;
}
else if (b > a && b > c)
{
cout << "the greatest no. is " << b;
}
else
{
cout << "the greatest no. is " << c;
}
cout<<endl;
return 0;
}