/*
Problem: https://oj.uz/problem/view/COCI20_emacs
*/
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define pb push_back
#define dbg(x) cerr << #x << " " << x << "\n"
const int N = 100;
char a[1 + N][1 + N];
int main() {
ios::sync_with_stdio (false);
cin.tie (0); cout.tie (0);
int n, m;
cin >> n >> m;
int ans = 0;
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= m; j++) {
cin >> a[i][j];
if (a[i - 1][j] != '*' && a[i][j - 1] != '*' && a[i][j] == '*')
ans++;
}
}
cout << ans << "\n";
return 0;
}