#include<fstream.h>
ifstream f("amlei.in");
ofstream g("amlei.out");
int n,t,u,w;
int solv()
{int i,j,ok1=1,ok2=0,tt,uu,x,ok3=0;
 for(i=1;i<=t;i++)
  {ok1=1;
   for(j=1;j<=n;j++)
    {f>>x;
     if(x<0) {ok1=0;break;}
    }
   if(ok1) {ok2=1;break;}
     else
	{j++;
	 while(j<=n) {f>>x;j++;}
	}
  }
 if(ok2)
  {tt=t*n;
   i=i*n+1;
   while(i<=tt)
    {f>>x;i++;}
  }
 ok3=0;
 for(i=1;i<=u;i++)
  {ok1=1;
   for(j=1;j<=n;j++)
    {f>>x;
     if(x<0) {ok1=0;break;}
    }
   if(ok1) {ok3=1;break;}
     else
	{j++;
	 while(j<=n) {f>>x;j++;}
	}
  }
 if(ok3)
  {uu=u*n;
   i=i*n+1;
   while(i<=uu)
    {f>>x;i++;}
  }
 return ok2==ok3;
}
int main()
{
 while(f>>n>>t>>u)
  {if(solv()) g<<"DA"<<'\n';
    else g<<"NU"<<'\n';
  }
 f.close();
 g.close();
return 0;
}