#include <bits/stdc++.h>
using namespace std;
#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 42
#endif
int main() {
ios::sync_with_stdio(false); cin.tie(nullptr);
int N, M; cin >> N >> M;
vector<string> S(N);
for (int i = 0; i < N; ++i) {
cin >> S[i];
}
vector sf(M, vector<int>(N));
for (int i = 0; i < M; ++i) {
sf[i][N - 1] = S[N - 1][i] == 'I';
for (int j = N - 2; j >= 0; --j) {
sf[i][j] = sf[i][j + 1] + (S[j][i] == 'I');
}
}
long long res = 0;
for (int i = 0; i < N; ++i) {
for (int j = M - 1, cnt = 0; j >= 0; --j) {
cnt += S[i][j] == 'O';
if (S[i][j] == 'J') {
res += cnt * sf[j][i];
}
}
}
cout << res;
return 0;
}
