#include <bits/stdc++.h>
#define ff first
#define ss second
#define endl '\n'
using namespace std;
const long long INF = (long long) 1e18;
const int mod = (int) 1e9+7;
const int MAXN = (int) 3e3+5;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
ll h, w;
string s[MAXN];
int al[MAXN][MAXN];
int sg[MAXN][MAXN];
int main(){
ios_base::sync_with_stdio(false);
cin.tie(nullptr);cout.tie(nullptr);
#ifdef Local
freopen("C:/Users/Admin/Desktop/Yazilim/C/IO/int.txt","r",stdin);
freopen("C:/Users/Admin/Desktop/Yazilim/C/IO/out.txt","w",stdout);
#endif
cin>>h>>w;
for(int i = 0; i < h; i++){
cin>>s[i];
}
for(int i = h - 1; i >= 0; i--){
for(int j = w - 1; j >= 0; j--){
al[i][j] = al[i + 1][j] + (s[i][j] == 'I');
}
}
ll ans = 0;
for(int i = w - 1; i >= 0; i--){
for(int j = h - 1; j >= 0; j--){
sg[j][i] = sg[j][i + 1] + (s[j][i] == 'O');
if(s[j][i] == 'J'){
ans += (ll)sg[j][i]*al[j][i];
//cout<<i<<" "<<j<<endl;
}
}
}
//cout<<sg[0][0]<<endl;
cout<<ans<<endl;
#ifdef Local
cout<<endl<<fixed<<setprecision(2)<<1000.0 * clock() / CLOCKS_PER_SEC<< " milliseconds ";
#endif
}
