#include <bits/stdc++.h> using namespace std; char c[3005][3005]; int d[3005][3005]; int r[3005][3005]; int main () { ios_base::sync_with_stdio(false); cin.tie(0); int n, m; cin >> n >> m; for (int i = 0; i < n; i++) { for (int j = 0; j < m; j++) { cin >> c[i][j]; } } for (int i = n-1; i >= 0; i--) { for (int j = m-1; j >= 0; j--) { d[i][j] = d[i+1][j]; if (c[i][j] == 'I') d[i][j]++; r[i][j] = r[i][j+1]; if (c[i][j] == 'O') r[i][j]++; } } long long sol = 0; for (int i = 0; i < n; i++) { for (int j = 0; j < m; j++) { if (c[i][j] == 'J') { sol += (long long)d[i][j] * (long long)r[i][j]; } } } cout << sol; return 0; }