#include <bits/stdc++.h> using namespace std; using ll = long long; int main() { ios::sync_with_stdio(0); cin.tie(0); int n, m; cin >> n >> m; vector<string> mat(n); for(auto &z : mat) cin >> z; vector<vector<int>> ig(n, vector<int>(m, 0)); vector<vector<int>> o(n, vector<int>(m, 0)); for(int i = n-1; i >= 0; --i) { for(int j = 0; j < m; ++j) { ig[i][j] = (mat[i][j] == 'I'); if(i + 1 < n) { ig[i][j] += ig[i+1][j]; } } } for(int j = m-1; j >= 0; --j) { for(int i = 0; i < n; ++i) { o[i][j] = (mat[i][j] == 'O'); if(j + 1 < m) { o[i][j] += o[i][j+1]; } } } ll ans = 0; for(int i = 0; i + 1 < n; ++i) { for(int j = 0; j + 1 < m; ++j) { if(mat[i][j] != 'J') continue; ans += ig[i+1][j] * o[i][j+1]; } } cout << ans << '\n'; }