#include<fstream>
#include<cstring>
using namespace std;
ifstream fin("cifre12.in");
ofstream fout("cifre12.out");
unsigned long long n, N, v, S,P, c;
int s[10]={6, 2, 5, 5, 4, 5, 6, 3, 7 , 6};
int a[10]={1 , 5, 1, 2, 2, 3, 1, 2, 0, 0};///cate cifre mai mari se pot obtine
int b[10]={2, 7, 2, 3, 3, 4, 2, 5, 1, 2 };
int w[25],k;
int main()
{
 fin>> v>> n;
 if(v==1)
 {
      S=0;
     while(n!=0)
     {
        c=n%10;
        S+=s[c];
        n/=10;
     }
     fout<<S;
 }
 else
 {
     N=n;k=0;
     while(N!=0){
        w[++k]=N%10;
        N/=10;
     }
     for(int i=1, j=k;i<j; i++, j--)
        swap(w[i], w[j]);
     S=0;
     for(int i=1;i<=k;i++)
     {
         if(a[w[i]]!=0)
         {
             P=a[w[i]];
             for(int j=i+1;j<=k;j++)
                P*=b[w[j]];
             S+=P;
         }
     }
     fout<<S;
 }
  return 0;
}