int main ()
{
	int 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)==3)
					{
						if(z>s)
						{
							cout<<"l"<<" "<<l<<endl;
						cout<<"q"<<" "<<q<<endl;
						cout<<"z"<<" "<<z<<endl;
						cout<<"s"<<" "<<s<<endl;
						}
						else
						{
							cout<<"l"<<" "<<l<<endl;
							cout<<"q"<<" "<<q<<endl;
							cout<<"s"<<" "<<s<<endl;
							cout<<"z"<<" "<<z<<endl;

						}
					}
				}



					return 0;
				}