#include <iostream>

using namespace std;

int main()
{
    int n,x,a, i1 = -1,poi,poa;
    cin>>n;
    int ckorcinja[10];
    ckorcinja[0] = 6;
    ckorcinja[1] = 3;
    ckorcinja[2] = 5;
    ckorcinja[3] = 5;
    ckorcinja[4] = 4;
    ckorcinja[5] = 5;
    ckorcinja[6] = 5;
    ckorcinja[7] = 3;
    ckorcinja[8] = 7;
    ckorcinja[9] = 5;
    a=0;
   for(int i=1000;i<=9999;i++)
   {
       poi=i;
       poa=0;
       while(i>0)
       {

           x = i % 10;
           i /= 10;
           a += ckorcinja[x];

       }
        i=poi;
       if(n==a)
       {
           i1 = i;
       }
        a=poa;

   }
    cout << i1 << endl;
    return 0;

}