#include <bits/stdc++.h>
using namespace std;
const int N = 3e3 + 2;
int h , w , dpo[N][N] , dpi[N][N];
char c[N][N];
signed main()
{
ios::sync_with_stdio(false);
cin.tie(0); cout.tie(0);
cin >> h >> w;
for(int i = 0 ; i < h ; i++) for(int j = 0 ; j < w ; j++)
cin >> c[i][j];
long long ans = 0;
for(int i = h - 1 ; i >= 0 ; i--) for(int j = w - 1 ; j >= 0 ; j--)
{
dpi[i][j] = (i == h - 1 ? 0 : dpi[i + 1][j]);
if(c[i][j] == 'I')
dpi[i][j]++;
dpo[i][j] = (j == w - 1 ? 0 : dpo[i][j + 1]);
if(c[i][j] == 'O')
dpo[i][j]++;
if(c[i][j] == 'J')
ans += dpi[i][j] * dpo[i][j];
}
cout << ans << '\n';
return 0;
}
