#include <bits/stdc++.h>
using namespace std;
template<typename T>
void out(T x) { cout << x << endl; exit(0); }
#define watch(x) cout << (#x) << " is " << (x) << endl
using ll = long long;
const int maxn = 1010;
int n, m;
string g[maxn];
int main() {
ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
cin>>n>>m;
for (int i=1; i<=n; i++) {
cin>>g[i];
g[i]="x"+g[i];
}
int res = 0;
for (int i=1; i<=n; i++) {
for (int j=1; j<=m; j++) {
if (g[i][j]=='*') {
if (g[i][j-1] != '*' && g[i-1][j] != '*') res++;
}
}
}
cout<<res<<endl;
return 0;
}
