#include <bits/stdc++.h>

using i64 = long long;

int main() {
  std::ios::sync_with_stdio(false);
  std::cin.tie(nullptr);

  int n, m;
  std::cin >> n >> m;

  std::vector<std::string> s(n);
  getline(std::cin, s[0]);
  for (int i = 0; i < n; i++) {
    getline(std::cin, s[i]);
  }

  int cnt = 0;
  for (int i = m - 1; i >= 0; i--) {
    if (s.back()[i] != '.') {
      break;
    }
    cnt++;
  }

  int r = cnt / 2, c = (m - cnt - 1) / 4;
  std::vector A(r + 1, std::vector<int>(c));

  for (int i = r - 1; i >= 0; i--) {
    for (int j = 0; j < c; j++) {
      A[i][j] = A[i + 1][j];
      int R = 2 * (r - 1 - i) + A[i][j] * 3;
      int C = 2 * (r - 1 - i) + (j + 1) * 4;
      for (int k = n - R - 1; k >= 0; k -= 3) {
        if (s[k][C] != '+') {
          break;
        }
        A[i][j]++;
      }
      A[i][j]--;
    }
  }

  int ans = 0;
  for (int i = 0; i < r; i++) {
    ans += std::accumulate(A[i].begin(), A[i].end(), 0);
  }
  std::cout << ans << "\n";

  return 0;
}