
int main()
{
	int z, q, s, l;

	for(z = 10;z <= 50;z += 10)
	{
		for(q = 10;q <= 50;q += 10)
		{
			for(s = 10;s <= 50;s += 10)
			{
				for(l = 10;l <= 50;l += 10)
				{
					if(z != q && z!= s && z!= l && q!= s && q!= l && s != l)
					{
						if(z + q == s + l && z + l > s + q && z + s < q)
						{
							cout << "l " << l << endl;
							cout << "q " << q << endl;
							cout << "z " << z << endl;
							cout << "s " << s << endl;	
						}
					}
				}
			}
		}
	}

	return 0;
}
