int main()
{
	int z,q,s,l;
	for(z=10;z<=50;z+=10)
		for(q=10;q<=50;q+=10)
		{
			if(q==z) continue;
			for(s=10;s<=50;s+=10)
			{
				if(s==q||s==z) continue;
				for(l=10;l<=50;l+=10)
				{
					if(l==s||l==q||l==z) continue;
					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;
}