#include <bits/stdc++.h> #define int long long using namespace std; const int NMAX=3001; int n, m; char v[NMAX+1][NMAX+1]; int i_jos[NMAX+1][NMAX+1]; int o_dreapta[NMAX+1][NMAX+1]; signed main() { cin>>n>>m; for(int i=1; i<=n; i++) for(int j=1; j<=m; j++) cin>>v[i][j]; for(int i=n; i>=1; i--) for(int j=1; j<=m; j++) { i_jos[i][j]=i_jos[i+1][j]; if(v[i][j]=='I')++i_jos[i][j]; } for(int i=1; i<=n; i++) for(int j=m; j>=1; j--) { o_dreapta[i][j]=o_dreapta[i][j+1]; if(v[i][j]=='O')++o_dreapta[i][j]; } int ans=0; for(int i=1; i<=n; i++) for(int j=1; j<=m; j++) if(v[i][j]=='J') ans+=i_jos[i][j]*o_dreapta[i][j]; cout<<ans; return 0; }