#pragma GCC optimize("O3")
#include <bits/stdc++.h>
using namespace std;
# define int long long
# define QR ios_base::sync_with_stdio(false); cin.tie(nullptr); cout.tie(nullptr);
# define endl '\n'
# define all(x) x.begin(), x.end()
# define ff first
# define ss second
# define pb push_back
const int INF = 1e18;
void CASE(){
int n, m;
cin >> n >> m;
map<char, pair < int , int > > h, w;
vector<string> s(n);
for (int i = 0; i < n; i++){
cin >> s[i];
}
vector<int> b(m, 0);
int ans = 0;
for (int i = n - 1; i >= 0; i--){
int a = 0;
for (int j = m - 1; j >= 0; j--){
if (s[i][j] == 'I'){
b[j]++;
}
}
for (int j = m - 1; j >= 0; j--){
if (s[i][j] == 'J'){
ans += a * b[j];
}
if (s[i][j] == 'O'){
a++;
}
}
}
cout << ans;
}
signed main() {
QR;
int TESTS = 1;
// cin >> TESTS;
for (int TEST = 1; TEST <= TESTS; TEST++) {
// cout << "Case #TEST << ": " ;
CASE();
}
return 0;
}
