#include <bits/stdc++.h>
using namespace std;
using ll = long long;
int n, m;
char mp[3005][3005];
int Oc[3005][3005], Ic[3005][3005];
int main() {
cin.tie(0) -> sync_with_stdio(0);
cin >> n >> m;
long long sum = 0;
for(int i=1;i<=n;i++) {
for(int j=1;j<=m;j++)
cin >> mp[i][j];
}
for(int i=1;i<=n;i++) {
for(int j=m;j>=1;j--) {
Oc[i][j] = Oc[i][j+1] + (mp[i][j] == 'O');
}
}
for(int j=1;j<=m;j++) {
for(int i=n;i>=1;i--) {
Ic[i][j] = Ic[i+1][j] + (mp[i][j] == 'I');
}
}
for(int i=1;i<=n;i++) for(int j=1;j<=m;j++) if(mp[i][j] == 'J') sum += Oc[i][j] * Ic[i][j];
cout << sum;
}
