//============================================================================
// Name        : POJtest.cpp
// Author      : 
// Version     :
// Copyright   : Your copyright notice
// Description : Hello World in C++, Ansi-style
//============================================================================

void shuchu(int ,int , int , int );
int main(void) {
	int z, q, s, l;//zqsl??????
	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???????
						continue;
					if (z + q != s + l)//???????????????
						continue;
					if (z + l <= s + q)//???????????????
						continue;
					if (z + s >= q)//????????????
						continue;
					shuchu(z,q,s,l);//????????????????????????????

				}
return 0;
}
void shuchu(int z,int q,int s,int l)
{
	for(int i=50;i>=10;i-=10)//?????????????????????????
	{
		if(i==z)//i???????????????
			cout << "z "<<z<<endl;
		else if(i==q)
			cout << "q "<<q<<endl;
		else if(i==s)
			cout << "s "<<s<<endl;
		else if(i==l)
			cout << "l "<<l<<endl;
	}
}
