#include <bits/stdc++.h>
#define int long long
#define pb push_back
#define mp make_pair
#define all(x) (x).begin(),(x).end()
#define fi first
#define sc second
#define endl "\n"
#define pii pair<int,int>
using namespace std;
const int MAXN = 1e5+5;
const int mod7 = 1e9+7;
const long long inf = 1e18;
signed main()
{
ios_base::sync_with_stdio(false),cin.tie(0), cout.tie(0);
int tt=1;
//cin >> tt;
while(tt--)
{
int n,m;
cin >> n >> m;
vector<vector<int>> mat(n+1,vector<int>(m+1,0));
vector<vector<int>> prefh(n+1,vector<int>(m+1,0));
vector<vector<int>> prefv(n+1,vector<int>(m+1,0));
for(int i=1; i<=n; i++)
{
string s;cin >> s;
for(int j=1; j<=m;j++)
{
mat[i][j] = s[j-1];
if(mat[i][j] == 'I')prefv[i][j] = 1;
else if(mat[i][j] == 'O')prefh[i][j] = 1;
}
}
for(int i=1; i<=n;i++)for(int j=1; j<=m; j++)prefh[i][j] += prefh[i][j-1];
for(int i=1; i<=m;i++)for(int j=1; j<=n; j++)prefv[j][i] += prefv[j-1][i];
long long rez = 0;
for(int i=1; i<=n; i++)
{
for(int j=1; j<=m; j++)
{
if(mat[i][j] != 'J')continue;
rez+= (prefh[i][m]-prefh[i][j])*(prefv[n][j]-prefv[i][j]);
}
}
cout << rez << endl;
}
}
