#include <bits/stdc++.h>
using namespace std;
#define int long long
#define ld long double
#define ar array
const int INF = 1e17;
const int MOD = 998244353;
int32_t main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
int n, m; cin>>n>>m;
string s[n];
for (auto &i : s) cin>>i;
int sfO[n][m], sfI[n][m];
int ans = 0;
for (int i = n-1; i >= 0; --i) {
for (int j = m-1; j >= 0; --j) {
sfO[i][j] = (j+1 < m) ? sfO[i][j+1] : 0;
sfI[i][j] = (i+1 < n) ? sfI[i+1][j] : 0;
if (s[i][j] == 'J') ans += sfO[i][j]*sfI[i][j];
if (s[i][j] == 'O') sfO[i][j] = 1 + ((j+1 < m) ? sfO[i][j+1] : 0);
if (s[i][j] == 'I') sfI[i][j] = 1 + ((i+1 < n) ? sfI[i+1][j] : 0);
}
}
cout<<ans<<"\n";
}
