#include<bits/stdc++.h>
using namespace std;
int main(){
    int n,m;
    cin>>n>>m;
    int a[n+10][m+10];
    for(int i=1;i<=n;i++){
        for(int j=1;j<=m;j++){
            cin>>a[i][j];
        }
    }
    for (int i = 0; i <= n + 1; i++) {
        a[i][0] = 1e9;
        a[i][m + 1] = 1e9;
    }
    for (int j = 0; j <= m + 1; j++) {
        a[0][j] = 1e9;
        a[n + 1][j] = 1e9;
    }
    int cnt=0;
    for(int i=1;i<=n;i++){
        for(int j=1;j<=m;j++){
            if(a[i][j]<=a[i-1][j-1]&&
               a[i][j]<=a[i-1][j]&&
               a[i][j]<=a[i-1][j+1]&&
               a[i][j]<=a[i][j-1]&&
               a[i][j]<=a[i][j+1]&&
               a[i][j]<=a[i+1][j-1]&&
               a[i][j]<=a[i+1][j]&&
               a[i][j]<=a[i+1][j+1])cnt++;
        }
    }
    cout<<cnt<<endl;
    return 0;
}