#include<bits/stdc++.h>
using namespace std;
const int MXN = 3003;
int h, w;
char a[MXN][MXN];
int I[MXN][MXN], O[MXN][MXN];
int32_t main() {
cin.tie(0); cout.tie(0); ios_base::sync_with_stdio(0);
cin >> h >> w;
for(int i=1; i<=h; i++)
for(int j=1; j<=w; j++)
cin >> a[i][j];
long long ans = 0;
for(int i=h; i>=1; i--)
for(int j=w; j>=1; j--) {
I[i][j] = (i+1<=h ? I[i+1][j] : 0) + (a[i][j]=='I');
O[i][j] = (j+1<=w ? O[i][j+1] : 0) + (a[i][j]=='O');
if(a[i][j]=='J')
ans += I[i][j]*O[i][j];
}
cout << ans << '\n';
return 0;
}
