#include <bits/stdc++.h>
using namespace std;
#define ll long long
char wej[3003][3003];
ll row[3003][3003];
ll col[3003][3003];
int main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
ll n,m;
cin >> n >> m;
for (ll i = 1; i<=n; i++){
for (ll j = 1; j<=m; j++){
cin >> wej[i][j];
row[i][j]=row[i][j-1];
col[i][j]=col[i-1][j];
if (wej[i][j]=='O')row[i][j]++;
if (wej[i][j]=='I')col[i][j]++;
}
}
ll ans=0;
for (ll i = 1; i<=n; i++){
for (ll j = 1; j<=m; j++){
if (wej[i][j]=='J')ans+=(col[n][j]-col[i-1][j])*(row[i][m]-row[i][j-1]);
}
}
cout << ans << '\n';
}
