#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define F first
#define S second
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int h, w;
cin>>h>>w;
vector<vector<char>> g(h, vector<char>(w));
vector<vector<int>> p(w, vector<int>(h, 0));
for(int i=0;i<h;++i) {
for(int j=0;j<w;++j) {
cin>>g[i][j];
p[j][i] += (i > 0 ? p[j][i - 1] : 0);
p[j][i] += (g[i][j] == 'I');
}
}
ll cnt = 0;
for(int i=0;i<h;++i) {
vector<int> p2(w, 0);
for(int j=w-1;j>=0;--j) {
p2[j] += (j != w - 1 ? p2[j + 1] : 0);
p2[j] += (g[i][j] == 'O');
if(g[i][j] == 'J') {
ll x = p[j][h - 1] - p[j][i], y = p2[j];
cnt += (x * y);
}
}
}
cout<<cnt<<'\n';
return 0;
}
