#include <bits/stdc++.h>
// author: aykhn
using namespace std;
typedef long long ll;
#define all(v) v.begin(), v.end()
#define pii pair<int, int>
#define mpr make_pair
#define eb emplace_back
#define pb push_back
#define ts to_string
#define fi first
#define se second
#define ins insert
#define int ll
#define inf 0x3F3F3F3F
#define infll 0x3F3F3F3F3F3F3F3FLL
#define bpc __builtin_popcount
const int MXN = 3e3 + 5;
char mat[MXN][MXN];
int pr[MXN][MXN];
int pc[MXN][MXN];
signed main()
{
ios_base::sync_with_stdio(0);
cin.tie(nullptr);
int n, m;
cin >> n >> m;
for (int i = 1; i <= n; i++)
{
for (int j = 1; j <= m; j++)
{
cin >> mat[i][j];
if (mat[i][j] == 'O') pr[i][j] = 1;
else if (mat[i][j] == 'I') pc[i][j] = 1;
pr[i][j] += pr[i][j - 1];
pc[i][j] += pc[i - 1][j];
}
}
int res = 0;
for (int i = 1; i <= n; i++)
{
for (int j = 1; j <= m; j++)
{
if (mat[i][j] != 'J') continue;
res += (pr[i][m] - pr[i][j]) * (pc[n][j] - pc[i][j]);
}
}
cout << res << '\n';
}
