#include <bits/stdc++.h>
#define int long long
// #pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
// #pragma GCC optimize("O3")
// #pragma GCC optimize("unroll-loops")
#define F first
#define S second
#define mp make_pair
#define pb push_back
#define all(x) x.begin(), x.end()
#define kill(x) cout << x << "\n", exit(0);
#define pii pair<int, int>
#define endl "\n"
using namespace std;
typedef long long ll;
// typedef __int128_t lll;
typedef long double ld;
const int MAXN = (int)3e3 + 7;
const int MOD = (int)1e9 + 7;
const int INF = (int)1e18 + 7;
int n, m, k, tmp, t, tmp2, tmp3, tmp4, u, v, w, flag, q, ans, flag2;
char arr[MAXN][MAXN];
int ps[MAXN][MAXN];
int32_t main() {
#ifdef LOCAL
freopen("inp.in", "r", stdin);
freopen("res.out", "w", stdout);
#else
ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#endif
cin >> n >> m;
for (int i=1; i<=n; i++) for (int j=1; j<=m; j++) cin >> arr[i][j];
for (int i=1; i<=n; i++) {
tmp = 0;
for (int j=m; j>=1; j--) {
tmp += (arr[i][j] == 'O');
if (arr[i][j] == 'J') ps[i][j] += tmp;
ps[i][j] += ps[i-1][j];
if (arr[i][j] == 'I') ans += ps[i][j];
}
}
cout << ans << endl;
return 0;
}
