#include <bits/stdc++.h> using namespace std; #define int long long #define endl '\n' int ans; int h, w; string ar[3005]; int suff[3005][3005][2]; signed main() { ios_base::sync_with_stdio(0); cin.tie(0); cin >> h >> w; for (int i = 0; i < h; i++) { cin >> ar[i]; } for (int i = 0; i < h; i++) { for (int j = w - 1; j >= 0; j--) { suff[i][j][0] = suff[i][j + 1][0]; suff[i][j][0] += (ar[i][j] == 'O'); } } for (int i = h - 1; i >= 0; i--) { for (int j = 0; j < w; j++) { suff[i][j][1] = suff[i + 1][j][1]; suff[i][j][1] += (ar[i][j] == 'I'); } } for (int i = 0; i < h; i++) { for (int j = 0; j < w; j++) { if (ar[i][j] == 'J') { ans += suff[i][j][0] * suff[i][j][1]; } } } cout << ans << '\n'; return 0; }