#include <vector>
#include <iostream>
#define int int64_t
using namespace std;
signed main()
{
ios_base::sync_with_stdio(0);
cin.tie(0);
int h, w;
cin >> h >> w;
vector<vector<int>> pref_o(h, vector<int>(w + 1));
vector<vector<int>> pref_i(w, vector<int>(h + 1));
vector<pair<int,int>> js;
for (int i = 0; i < h; i++)
{
for (int j = 0; j < w; j++)
{
pref_o[i][j + 1] = pref_o[i][j];
pref_i[j][i + 1] = pref_i[j][i];
char c;
cin >> c;
if (c == 'J') js.push_back({i, j});
else if (c == 'I') pref_i[j][i + 1]++;
else if (c == 'O') pref_o[i][j + 1]++;
}
}
int ans = 0;
for (auto p : js)
{
ans += (pref_i[p.second][h] - pref_i[p.second][p.first])*(pref_o[p.first][w] - pref_o[p.first][p.second]);
}
cout << ans << "\n";
}
