#include <bits/stdc++.h>
using namespace std;
char c[3005][3005];
int d[3005][3005];
int r[3005][3005];
int main () {
ios_base::sync_with_stdio(false);
cin.tie(0);
int n, m;
cin >> n >> m;
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++) {
cin >> c[i][j];
}
}
for (int i = n-1; i >= 0; i--) {
for (int j = m-1; j >= 0; j--) {
d[i][j] = d[i+1][j];
if (c[i][j] == 'I') d[i][j]++;
r[i][j] = r[i][j+1];
if (c[i][j] == 'O') r[i][j]++;
}
}
long long sol = 0;
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++) {
if (c[i][j] == 'J') {
sol += (long long)d[i][j] * (long long)r[i][j];
}
}
}
cout << sol;
return 0;
}
