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#include <iostream>
#include <fstream>
using namespace std;
FILE *f;
int main()
{
ofstream g("dtcsu.out");
f = fopen("dtcsu.in", "r");
//fstream f("dtcsu.in",ios::in);
char c[110];
for(int i=1;i<=276997;i++)
{
fgets(c,110,f);
}
long long n;
int m,nr=0;
f>>m;
for(int i=0;i<m;i++)
{f>>n;
if(n==1)
nr++;
else
{
for(int k=2;k<12;k++)
{
if(n%k==0)
{n/=k;
k--;
}
}
if(!n)
nr++;
}
}
g<<nr;
return 0;
}