#include <bits/stdc++.h>
#define int long long
using namespace std;
int m, n, pi[3002][3002], po[3002];
char a[3002][3002];
signed main() {
ios::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
cin >> m >> n;
for(int i = 1; i <= m; i++) {
string s;
cin >> s;
s = "#" + s;
for(int j = 1; j <= n; j++) {
a[i][j] = s[j];
}
}
for(int i = m; i >= 1; i--) {
for(int j = 1; j <= n; j++) {
pi[i][j] = pi[i + 1][j] + (a[i][j] == 'I');
}
}
int ans = 0;
for(int i = 1; i <= m; i++) {
po[n + 1] = 0;
for(int j = n; j >= 1; j--) {
po[j] = po[j + 1] + (a[i][j] == 'O');
}
for(int j = 1; j <= n; j++) {
if(a[i][j] == 'J') {
ans += po[j + 1] * pi[i + 1][j];
}
}
}
cout << ans;
return 0;
}
