/*
:>
*/
#pragma GCC optimize ("O3")
#pragma GCC target ("sse4")
#include <bits/stdc++.h>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/rope>

using namespace std;
using namespace __gnu_pbds;
using namespace __gnu_cxx;

random_device(rd);
mt19937 rng(rd());
const long long FIXED_RANDOM = chrono::steady_clock::now().time_since_epoch().count();

struct custom_hash
{
	template<class T>
	unsigned long long operator()(T v) const
	{
		unsigned long long x = v;
		x += FIXED_RANDOM; x += 11400714819323198485ull;
		x = (x ^ (x >> 30)) * 13787848793156543929ull;
		x = (x ^ (x >> 27)) * 10723151780598845931ull;
		return x ^ (x >> 31);
	}
};

template<class T> using ordered_set = tree<T, null_type, less<T>, rb_tree_tag, tree_order_statistics_node_update>;
template<class T, class U> using hash_table = gp_hash_table<T, U, custom_hash>;

template<class T>
void readi(T &x)
{
	x = 0;
	bool negative = false;
	char c = ' ';
	while (c < '-')
	{
		c = getchar();
	}
	if (c == '-')
	{
		negative = true;
		c = getchar();
	}
	while (c >= '0')
	{
		x = x * 10 + (c - '0');
		c = getchar();
	}
	if (negative)
	{
		x = -x;
	}
}
template<class T>
void printi(T output)
{
	if (output == 0)
	{
		putchar('0');
		return;
	}
	if (output < 0)
	{
		putchar('-');
		output = -output;
	}
	int buf[20], n = 0;
	while(output)
	{
		buf[n] = ((output % 10));
		output /= 10;
		n++;
	}
	for (n--; n >= 0; n--)
	{
		putchar(buf[n] + '0');
	}
	return;
}
template<class T>
void ckmin(T &a, T b)
{
	a = min(a, b);
}
template<class T>
void ckmax(T &a, T b)
{
	a = max(a, b);
}
long long expo(long long a, long long e, long long mod)
{
	return ((e == 0) ? 1 : ((expo(a * a % mod, e >> 1, mod)) * ((e & 1) ? a : 1) % mod));
}
template<class T, class U>
T nmod(T &x, U mod)
{
	if (x >= mod) x -= mod;
}
template<class T>
T gcd(T a, T b)
{
	return (b ? gcd(b, a % b) : a);
}
template<class T>
T randomize(T mod)
{
	return (uniform_int_distribution<T>(0, mod - 1))(rng);
}

#define y0 ___y0
#define y1 ___y1
#define MP make_pair
#define MT make_tuple
#define PB push_back
#define PF push_front
#define fi first
#define se second
#define debug(x) cerr << #x << " = " << x << endl;
#define sz(x) ((int) (x.size()))

const long double PI = 4.0 * atan(1.0);
const long double EPS = 1e-9;

#define MAGIC 347
#define SINF 10007
#define CO 1000007
#define INF 1000000007
#define BIG 1000000931
#define LARGE 1696969696967ll
#define GIANT 2564008813937411ll
#define LLINF 2696969696969696969ll
#define MAXN 1213

typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef pair<ld, ld> pdd;

int N, M;
bitset<MAXN> grid[MAXN];
int ans;
int vsum[MAXN][MAXN], hsum[MAXN][MAXN];

bool chk(int x, int y)
{
	return (0 <= x && x < N && 0 <= y && y < N && grid[x][y]);
}
int vertsum(int y, int l, int r)
{
	if (l > r || l >= N || r < 0) return 0;
	ckmax(y, 0); ckmin(y, N - 1);
	ckmax(l, 0); ckmin(l, N - 1);
	ckmax(r, 0); ckmin(r, N - 1);
	return vsum[r + 1][y] - vsum[l][y];
}
int horzsum(int x, int l, int r)
{
	if (l > r || l >= N || r < 0) return 0;
	ckmax(x, 0); ckmin(x, N - 1);
	ckmax(l, 0); ckmin(l, N - 1);
	ckmax(r, 0); ckmin(r, N - 1);
	return hsum[x][r + 1] - hsum[x][l];
}

int32_t main()
{
	ios_base::sync_with_stdio(0); cin.tie(0);
	// cout << fixed << setprecision(10);
	// cerr << fixed << setprecision(10);
	// freopen ("file.in", "r", stdin);
	// freopen ("file.out", "w", stdout);
	cin >> N >> M;
	for (int i = 0; i < N; i++)
	{
		string temps; cin >> temps;
		for (int j = 0; j < M; j++)
		{
			grid[i + j][i - j + M - 1] = (bool) (temps[j] == '#');
		}
	}
	N = N + M - 1;
	// for (int i = 0; i < N; i++)
	// {
	// 	for (int j = 0; j < N; j++)
	// 	{
	// 		cerr << grid[i][j];
	// 	}
	// 	cerr << endl;
	// }
	for (int k = 2; k <= N; k += 2)
	{
		for (int i = 0; i <= N; i++)
		{
			for (int j = 0; j <= N; j++)
			{
				vsum[i][j] = 0;
				hsum[i][j] = 0;
			}
		}
		for (int i = 0; i < N; i++)
		{
			for (int j = 0; j < N; j++)
			{
				vsum[i + 1][j] = vsum[i][j] + (bool) (grid[i][j] & grid[i + k][j]);
				hsum[i][j + 1] = hsum[i][j] + (bool) (grid[i][j] & grid[i][j + k]);
			}
		}
		for (int i = 0; i < N; i++)
		{
			for (int j = 0; j < N; j++)
			{
				if (!grid[i][j]) continue;
				ans += horzsum(i - k, j - k, j - 1);
				ans += horzsum(i + k, j - k + 1, j);
				ans += vertsum(j - k, i - k + 1, i);
				ans += vertsum(j + k, i - k, i - 1);
			}
		}
	}
	//we win!
	cout << ans << '\n';
	// cerr << "time elapsed = " << (clock() / (CLOCKS_PER_SEC / 1000)) << " ms" << endl;
	return 0;
}


Measured memory_bytes: 10624