#include <stdio.h>

int main()
{int nr2,j,v2[1000],v1[1000],n,i,k,nr1,u,t;


 freopen("amlei.in","r",stdin);
 freopen("amlei.out","w",stdout);
 while (scanf("%d %d %d",&n,&t,&u)!=EOF)
  { for (nr1=0,i=1;i<=n*t;++i)
	  {scanf("%d",&v1[i]);
       for (j=1;j<=nr1;++j)
        if (v1[j]==v1[i])
		{j=-1;break;}
        if (j!=-1) v1[++nr1]=v1[i];
	  }
     for (nr2=0,i=1;i<=n*u;++i)
	  {scanf("%d",&k);
       for (j=1;j<=nr2;++j)
        if (v2[j]==k)
		{j=-1;break;}
        if (j!=-1) v2[++nr2]=k;
	   }
      
 if (nr1!=nr2) printf("NU\n"); else
 {for (i=1;i<=nr1;++i)
   {for (j=1;j<=nr2;++j)
     if (v1[i]==v2[j]) 
	 {j=-1;break;}		 
	if (j!=-1) { printf("NU\n"); i=-1;}
   }
   if (i!=-1) printf("DA\n");
 }
  }
 return 0;
}