#include<bits/stdc++.h>
#define int long long
#define fi first
#define se second
using namespace std;
using ll = long long;
using ii = pair<int,int>;
using aa = array<int,3>;
char a[3005][3005];
int O[3005][3005];
int I[3005][3005];
signed main()
{
ios_base::sync_with_stdio(false);
cin.tie(NULL); cout.tie(NULL);
int n,m;
cin >> n >> m;
for(int i=1;i<=n;i++) {
for(int j=1;j<=m;j++) {
cin >> a[i][j];
O[i][j]=O[i][j-1];
if(a[i][j]=='O') {
O[i][j]++;
}
I[i][j]=I[i-1][j];
if(a[i][j]=='I') {
I[i][j]++;
}
}
}
int ans=0;
for(int i=1;i<=n;i++) {
for(int j=1;j<=m;j++) {
if(a[i][j]=='J') {
ans+=(O[i][m]-O[i][j])*(I[n][j]-I[i][j]);
}
}
}
cout << ans;
return 0;
}
