//#pragma GCC optimize("O3")
#include<bits/stdc++.h>
using namespace std;
#define int long long
#define X first
#define Y second
int n;int m;
string gr[5010];
int pso[3010][3010];
int psi[3010][3010];
signed main(){
cin.tie(0);
ios_base::sync_with_stdio(0);
cin>>n>>m;
for(int i=1;i<=n;i++){
cin>>gr[i];
gr[i]="*"+gr[i];
}
for(int j=1;j<=m;j++){
for(int i=1;i<=n;i++){
psi[i][j]=psi[i-1][j];
if(gr[i][j]=='I'){
psi[i][j]++;
}
}
}
for(int i=1;i<=n;i++){
for(int j=1;j<=m;j++){
pso[i][j]=pso[i][j-1];
if(gr[i][j]=='O'){
pso[i][j]++;
}
}
}
int ans=0;
for(int i=1;i<=n;i++){
for(int j=1;j<=m;j++){
if(gr[i][j]!='J'){continue;}
ans+=(pso[i][m]-pso[i][j])*(psi[n][j]-psi[i][j]);
}
}
cout<<ans<<endl;
}
