//Dost SEFEROĞLU
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define pii pair<int,int>
#define ff first
#define ss second
#define sp << " " <<
#define all(cont) cont.begin(),cont.end()
#define vi vector<int>
const int MOD = 1e9+7,inf = 2e18;
const int N = 1e5+50;
void solve() {
int n,m;
cin >> n >> m;
char grid[n+1][m+1];
for (int i=1;i<=n;i++) {
string s;
cin >> s;
for (int j=1;j<=m;j++) grid[i][j] = s[j-1];
}
int ans = 0;
vi stuff(m+1,0);
for (int i=n;i>=1;i--) {
for (int j=1;j<=m;j++) {
if (grid[i][j] == 'I') stuff[j]++;
}
int os = 0;
for (int j=m;j>=1;j--) {
if (grid[i][j] == 'O') os++;
else if (grid[i][j] == 'J') ans+=os*stuff[j];
}
}
cout << ans << endl;
}
signed main() {
ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#ifdef Dodi
freopen("in.txt","r",stdin);
freopen("out.txt","w",stdout);
#endif
int t = 1;
//cin >> t;
while (t --> 0) solve();
}
