#include <bits/stdc++.h>
using namespace std;
bool a(int n){
	int i;
	if(n==1)
		return 0;
	if(n==0)
		return 0;
	for(i=2;i<n;i++){
		if(n%i==0){
			return 0;
		}
	}
	return 1;
} 
int main(){
	int i,j,m,n,b[99][99]={{0}},s=0;
	cin>>m>>n; 
	for(i=1;i<=m;i++){
		for(j=1;j<=n;j++){
			cin>>b[i][j];
		}
	}
	for(i=1;i<=m;i++){
		for(j=1;j<=n;j++){
			if(a(b[i][j])){
				if(a(b[i+1][j])==0&&a(b[i][j+1])==0&&a(b[i-1][j])==0&&a(b[i][j-1])==0&&a(b[i-1][j-1])==0&&a(b[i-1][j+1])==0&&a(b[i+1][j+1])==0&&a(b[i+1][j-1])==0){
					s++;
				}		
			}
		}
	}
	cout<<s;
	return 0;
	}
/**************************************************************
	Problem: 1997
	User: fzy001
	Language: C++
	Result: Accepted
	Time:8 ms
	Memory:2072 kb
****************************************************************/