#include<bits/stdc++.h>
using namespace  std;
int n,m,ans,pd;
char g[1001][1001]; 
int  main( ) 
{
    cin>>n>>m;
    for (int i=1;i<=n;i++)
        for (int j=1;j<=m;j++)
            cin>>g[i][j];
    for (int i=1;i<=n;i++)
    {
        int ok=0;
        for (int j=1;j<=n;j++)
        {
            if (pd=0)
            {
                if (g[i][j]=='#')
                    ok=1;
                if (g[i-1][j+1]=='#')
                    ok=0;
                if (g[i-1][j]=='#')
                    ok=0;
                if (g[i-1][j-1]=='#')
                    ok=0;
                if (g[i+1][j+1]=='#')
                    ok=0;
                if (g[i+1][j-1]=='#')
                    ok=0;
                if (g[i+1][j]=='#')
                    ok=0;
                if (g[i][j+1]=='#')
                    ok=0;
                if (g[i][j-1]=='#')
                    ok=0;
                if (ok)
                    g[i][j]='.',pd=1;
            }
        }
    }
    if (pd=0)
        for (int i=1;i<=n;i++)
            for (int j=1;j<=m;j++)
                if (g[i][j]=='#')
                {
                    g[i][j]='.';
                    break;  
                }
    for (int i=1;i<=n;i++)
        for (int j=1;j<=m;j++)
            if (g[i-1][j]=='.' && g[i+1][j]=='.' && g[i][j+1]=='.' && g[i][j-1]=='.')
                ans++;
    cout<<ans;
    return 0;   
}