#include <bits/stdc++.h>
using namespace std;
#define int long long
#define fi first
#define se second
#define mp make_pair
#define pb emplace_back
int32_t main(){
ios::sync_with_stdio(false);
cin.tie(0); cout.tie(0);
int n, k, ans = 0; cin >> n >> k;
char ch[n][k];
int cnt[n][k], cnt2[n][k];
for (int i = 0; i < n; i++){
for (int j = 0; j < k; j++){
cin >> ch[i][j];
}
}
for (int i = n - 1; i >= 0; i--){
for (int j = k - 1; j >= 0; j--){
if (i == n - 1) cnt[i][j] = 0;
else cnt[i][j] = cnt[i + 1][j];
if (j == k - 1) cnt2[i][j] = 0;
else cnt2[i][j] = cnt2[i][j + 1];
if (ch[i][j] == 'I') cnt[i][j]++;
if (ch[i][j] == 'O') cnt2[i][j]++;
}
}
for (int i = 0; i < n; i++){
for (int j = 0; j < k; j++){
if (ch[i][j] == 'J') ans += cnt[i][j] * cnt2[i][j];
}
}
cout << ans;
}
