#include <iostream>
using namespace std;
int prim (int x)
{
	int d;
	if (x<2) return 0;
	else for (d=2;d<=x/2;d++)
		if (x%d==0)
			return 0;
	return 1;
}
int minim(int v[], int n)
{
	int i,nr=0;
	for (i=0;i<n;i++)
		if (prim(v[i]))
			nr++;
	return nr;
}
int main()
{
	int v[8]={1,2,3,4,5,6,7,8};
	cout<<minim (v,8);
}