#include <bits/stdc++.h>
#define int long long
#define pb push_back
#define fs first
#define sc second
using namespace std;
const int N = 3005;
int h, w;
string s[N];
int dn[N];
signed main() {
cin >> h >> w;
for (int i = 0; i < h; i++) cin >> s[i];
int ans = 0;
for (int i = h - 1; i >= 0; i--) {
int pref = 0;
for (int j = 0; j < w; j++) {
if (s[i][j] == 'J') pref += dn[j];
else if (s[i][j] == 'O') ans += pref;
}
for (int j = 0; j < w; j++) {
if (s[i][j] == 'I') dn[j]++;
}
}
cout << ans << endl;
}
