#include<bits/stdc++.h>
using namespace std;
using ll = long long;
const int N = 3000 + 66;
string s[N];
ll d[N][N], r[N][N], Ans;
int main() {
ios_base::sync_with_stdio(0);
cin.tie(0), cout.tie(0);
int n, m;
cin >> n >> m;
for (int i = 0 ; i < n ; ++ i) cin >> s[i];
for (int i = n - 1 ; i >= 0 ; -- i) {
for (int j = m - 1 ; j >= 0 ; -- j) {
r[i][j] = s[i][j] == 'O';
if (j + 1 < m) r[i][j] += r[i][j + 1];
d[i][j] = s[i][j] == 'I';
if (i + 1 < n) d[i][j] += d[i + 1][j];
Ans += (s[i][j] == 'J') * d[i][j] * r[i][j];
}
}
cout << Ans;
}
