// author: erray
#include <bits/stdc++.h>
#ifdef DEBUG
#include "debug.h"
#else
#define debug(...) void(37)
#endif
using namespace std;
int main() {
ios_base::sync_with_stdio(false);
cin.tie(0);
int H, W;
cin >> H >> W;
vector<string> S(H);
for (int i = 0; i < H; ++i) {
cin >> S[i];
}
vector<vector<int>> I(H + 1, vector<int>(W + 1));
vector<vector<int>> O(H + 1, vector<int>(W + 1));
long long ans = 0;
for (int i = H - 1; i >= 0; --i) {
for (int j = W - 1; j >= 0; --j) {
I[i][j] = I[i + 1][j] + (S[i][j] == 'I');
O[i][j] = O[i][j + 1] + (S[i][j] == 'O');
if (S[i][j] == 'J') {
ans += 1LL * I[i][j] * O[i][j];
}
}
}
cout << ans << '\n';
}
