
int main()
{
int a[4],i,j,k,Z,Q,S,L;    //??????????????????????
char b[4]={'z','q','s','l'},y;     //??????????????
for(a[0]=10;a[0]<=50;a[0]+=10)        //???????????
     {
     for(a[1]=10;a[1]<=50;a[1]+=10)
          {
          for(a[2]=10;a[2]<=50;a[2]+=10)
               {
               a[3]=a[0]+a[1]-a[2];
               if((a[3]>=10)&&(a[3]<=50)&&((a[0]+a[3])>(a[1]+a[2]))&&((a[0]+a[2])<a[1]))
            	   {
            	   Z=a[0];Q=a[1];S=a[2];L=a[3];    //??????????????????????
                   break;break;break;
            	   }
               }
          }
     }
a[0]=Z;a[1]=Q;a[2]=S;a[3]=L;   //????
for(i=2;i>=0;i--)                     //????????????????????????????
	 for(j=0;j<=i;j++)
	 {
		  if(a[i]>a[i+1])
		  {
			   k=a[i];
			   a[i]=a[i+1];
			   a[i+1]=k;
			   y=b[i];
			   b[i]=b[i+1];
			   b[i+1]=y;
		  }
	 }
for(i=3;i>=0;i--)       //??????????????
     {
	 printf("%c %d\n",b[i],a[i]);
     }
return 0;
}