#include <bits/stdc++.h>
using namespace std;
int main() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
int h, w;
cin >> h >> w;
vector<string> t(h);
for (auto& s : t) {
cin >> s;
}
vector<vector<int>> pref_vert(h, vector<int>(w));
long long ans = 0;
for (int i = h - 1; i >= 0; --i) {
vector<int> pref_hor(w);
pref_hor[w - 1] = t[i].back() == 'O';
for (int j = w - 2; j >= 0; --j) {
if (t[i][j] == 'J') {
ans += (long long)pref_hor[j + 1] * (i + 1 < h ? pref_vert[i + 1][j] : 0);
}
pref_hor[j] = pref_hor[j + 1] + (t[i][j] == 'O');
pref_vert[i][j] = t[i][j] == 'I';
if (i + 1 < h) {
pref_vert[i][j] += pref_vert[i + 1][j];
}
}
}
cout << ans << '\n';
return 0;
}
