#include <fstream.h>
ifstream f("cifre.in"); 
ofstream g("cifre.out");
const int x[10][4]=
{{0,0,0,0},{1,1,1,1},{6,2,4,8},{1,3,9,7},{6,4,6,4},
 {5,5,5,5},{6,6,6,6},{1,7,9,3},{6,8,4,2},{1,9,1,9}};
int n,c,l,i,j,uc;
long a;
int main(void)
{for(i=1; i<=3; i++)
  {f>>n; uc=0;
   for(j=1; j<=n; j++)
    {f>>a;
     c=a%10; 
     l=a%4; uc=(uc+x[c][l])%10;
     };
   g<<uc<<' ';
  };
 g<<'\n'; 
 f.close(); 
 g.close(); 
 return 0;
}