#include <bits/stdc++.h>

using ll = long long;
using namespace std;

signed main() {
#ifdef LOCAL
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#else
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
#endif
    
    int n, m;
    cin >> n >> m;
    vector<vector<char>> t(n, vector<char>(m));
    
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < m; j++) {
            cin >> t[i][j];
        }
    }

    vector<int> cntI(n);
    vector<int> cntO(m);

    ll ans = 0;

    for (int i = n - 1; i >= 0; i--) {
        for (int j = m - 1; j >= 0; j--) {
            if (t[i][j] == 'J') {
                ans += 1ll * cntI[i] * cntO[j];
            }
            cntI[i] += t[i][j] == 'O';
            cntO[j] += t[i][j] == 'I';
        }
    }
    
    cout << ans << '\n';
    return 0;
}