#include <bits/stdc++.h>
#define fi first
#define se second
#define pb push_back
using namespace std;
typedef long long ll;
typedef double dbl;
typedef pair<ll,ll> pii;
const int maxn = 3e3+5,MOD = 1e9+7;
ll H,W,A[maxn][maxn];
ll J[maxn],O[maxn],I[maxn][maxn];
string S;
int main(){
ios::sync_with_stdio(false);
cin.tie(NULL);
cin >> H >> W;
for(int i =1; i <= H; i++){
cin >> S;
for(int j=1; j <= W;j++ ){
if(S[j-1] == 'J') A[i][j] = 1;
else if(S[j-1] == 'O') A[i][j] = 2;
else A[i][j] = 3;
}
}
for(int i =1; i <= H; i++){
for(int j = W; j > 0; j--){
I[i][j] = I[i-1][j] + I[i][j+1] - I[i-1][j+1];
if(A[i][j] == 2)O[i]++;
else if(A[i][j] == 1)J[j] += O[i];
else I[i][j] += J[j];
}
}
cout << I[H][1] << '\n';
}
