#include <bits/stdc++.h>
using namespace std;
#define int long long
const int N = 3e3 + 5;
char a[N][N];
int cntO[N][N],cntI[N][N];
signed main() {
ios_base::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
int n,m;
cin >> n >> m;
for (int i = 1; i <= n; i++)
for (int j = 1; j <= m; j++) cin >> a[i][j];
for (int i = n; i >= 1; i--)
for (int j = m; j >= 1; j--) {
cntO[i][j] = cntO[i][j + 1] + (a[i][j] == 'O');
cntI[i][j] = cntI[i + 1][j] + (a[i][j] == 'I');
}
int ans = 0;
for (int i = 1; i <= n; i++)
for (int j = 1; j <= m; j++)
if (a[i][j] == 'J') ans += cntO[i][j] * cntI[i][j];
cout << ans << "\n";
}
