#include <iostream>

using namespace std;

float a, b, c;

// This assignment is worth 5 points.
// -1 if & is used instead of &&
// -3 for failing to have the correct logic

int main()
{
	cout << "Enter three side lengths: ";
	cin >> a >> b >> c;

	if(a+b>c && a+c>b && b+c>a)
		cout << "A triangle is possible." << endl;
	else
		cout << "A triangle is not possible." << endl;

	return 0;
}