#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define st first
#define nd second
typedef long long ll;
typedef long double ld;
const ll I = 1'000'000'000'000'000'000LL;
const int II = 2'000'000'000;
const ll M = 1'000'000'007LL;
const int N = 4'000;
int il[N];
void Solve()
{
int n, m, cur;
ll answer = 0LL;
string s;
cin >> n >> m;
for(int i = 1; i <= n; ++i)
{
cin >> s;
cur = 0;
for(int j = m - 1; j >= 0; --j)
{
if(s[j] == 'O') ++cur;
if(s[j] == 'J') il[j] += cur;
if(s[j] == 'I') answer += (ll)il[j];
}
}
cout << answer << "\n";
}
int main()
{
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
//int t; cin >> t;
//while(t--)
Solve();
return 0;
}
