#include<bits/stdc++.h>
using namespace std;
int su(int q){
	int i,o=1;
	if(q<2) o=0;
	else{
		for(i=2;i<=sqrt(q);i++){
			if(q%i==0){
				o=0;
				break;
			}
		}
	}
	return o;
}
int main()
{
	int a[50][50],n,m,i,s=0,j;
	cin>>n>>m;
	for(i=1;i<=n;i++){
		for(j=1;j<=m;j++){
			cin>>a[i][j];
		}
	}
	for(i=1;i<=n;i++){
		for(j=1;j<=m;j++){
			if(su(a[i][j])&&!su(a[i+1][j])&&!su(a[i-1][j])&&!su(a[i][j+1])&&!su(a[i][j-1])&&!su(a[i+1][j-1])&&!su(a[i+1][j+1])&&!su(a[i-1][j+1])&&!su(a[i-1][j-1]))
				s++;
		}
	} 
	cout<<s;
return 0;

}
/**************************************************************
	Problem: 1997
	User: houshanglin
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2076 kb
****************************************************************/