#include<iostream>
# include <fstream>
using namespace std ;
int main()
{
    int a[11];
    ifstream read_file ("input.txt");
    ofstream write_file ("output.txt");
    int  b,i ,k ;
    k=0;
     for (i=1;i<11;i++)
   {
    read_file>>a[i];
       if (a[i]<7)
       {
           k++;
       }
       else ;
   }
   write_file << k << "\n"<<endl;
   return 0 ;
}