//#pragma GCC optimize("Ofast,O2,O3,unroll-loops")
//#pragma GCC target("avx2")
#include <bits/stdc++.h>
using namespace std;
void debug_out() { cerr << endl; }
template<typename Head, typename... Tail>
void debug_out(Head H, Tail... T) {
cerr << "[" << H << "]";
debug_out(T...);
}
#ifdef dddxxz
#define debug(...) cerr << "[" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__)
#else
#define debug(...) 42
#endif
#define SZ(s) ((int)s.size())
#define all(x) (x).begin(), (x).end()
#define lla(x) (x).rbegin(), (x).rend()
#define bpc(x) __builtin_popcount(x)
#define bpcll(x) __builtin_popcountll(x)
clock_t startTime;
double getCurrentTime() {
return (double) (clock() - startTime) / CLOCKS_PER_SEC;
}
#define MP make_pair
typedef long long ll;
mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
const double eps = 0.000001;
const int MOD = 998244353;
const int INF = 1000000101;
const long long LLINF = 1223372000000000555;
const int N = 1e6 + 3e2;
const int M = 2222;
int a[M][M];
int d[M][M];
int up[M][M], down[M][M];
void solve(int TC) {
int n, m;
cin >> n >> m;
for (int i = 1; i <= n; i++){
int last = 0;
for (int j = 1; j <= m; j++){
a[i][j] = -1e9;
char c;
cin >> c;
if (c == '#'){
a[i][j] = -1;
if (last != 0 && j % 2 == last % 2){
a[i][(j + last) / 2] = j - last - 1;
}
last = j;
}
}
}
for (int i = 1; i <= n; i++){
for(int j = 1; j <= m; j++){
d[i][j] = a[i][j] - a[i - 1][j];
}
}
for (int i = 1; i <= n; i++){
for (int j = 1; j <= m; j++){
up[i][j] = (d[i][j] == 2 ? up[i - 1][j] + 1 : 0);
}
}
for (int i = n; i >= 1; i--){
for (int j = 1; j <= m; j++){
down[i][j] = (d[i + 1][j] == -2 ? down[i + 1][j] + 1 : 0);
}
}
int cnt = 0;
for (int i = 1; i <= n; i++){
for (int j = 1; j <= m; j++){
if (up[i][j] == down[i][j] && up[i][j] * 2 - 1 == a[i][j] && a[i][j] != -1) cnt++;
}
}
cout << cnt << endl;
}
int main() {
startTime = clock();
ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
#ifdef dddxxz
freopen("input.txt", "r", stdin);
freopen("output.txt", "w", stdout);
#endif
int TC = 1;
// cin >> TC;
for (int test = 1; test <= TC; test++) {
//debug(test);
//cout << "Case #" << test << ": ";
solve(test);
}
cerr << endl << "Time: " << int(getCurrentTime() * 1000) << " ms" << endl;
return 0;
}
