int main ( )
{
	int Z,Q,S,L,z,q,s,l;
		for(z=10;z<=50;z=z+10)
		{
			for(q=10;q<=50;q=q+10)
			{
				for(s=10;s<=50;s=s+10)
				{
					for(l=10;l<=50;l=l+10)
					{
						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 ;
}