// 23 - 12 - 23
#include<bits/stdc++.h>
using namespace std;
#define read() ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0)
#define day() time_t now = time(0);char* x = ctime(&now);cerr<<"Right Now Is : "<<x<<"\n"
#define int long long
#define ii pair<int,int>
#define X first
#define Y second
const long long MAX = (int)3000 + 5;
const long long INF = (int)1e9;
const long long MOD = (int)1e9 + 7;
int n,m;
char a[MAX][MAX];
int O[MAX],I[MAX];
signed main(){
read();
cin >> n >> m;
for(int i = 1;i <= n;i++){
for(int j = 1;j <= m;j++){
cin >> a[i][j];
}
}
int res = 0;
for(int i = n;i >= 1;i--){
for(int j = m;j >= 1;j--){
if(a[i][j] == 'O')O[i]++;
else if(a[i][j] == 'I')I[j]++;
else {
res = (res + O[i] * I[j]);
}
}
}
cout << res;
}
