#include <bits/stdc++.h>
#define ll long long
#define oo 1e9
#define pii pair<int, int>
using namespace std;
int main()
{
int n, m; cin >> n >> m;
getchar();
char grid[n][m];
for (int i = 0; i < n; i++)
{
for (int j = 0; j < m; j++)
{
grid[i][j] = getchar();
}
getchar();
}
int ingots[m];
memset(ingots, 0, sizeof(ingots));
ll ans = 0;
for (int i = n - 1; i >= 0; i--)
{
int preSum[m + 1];
memset(preSum, 0, sizeof(preSum));
for (int j = 0; j < m; j++)
{
preSum[j + 1] = preSum[j] + (grid[i][j] == 'O');
}
for (int j = 0; j < m; j++)
{
if(grid[i][j] == 'J'){
ans += 1ll * ingots[j] * (preSum[m] - preSum[j]);
}
if(grid[i][j] == 'I'){
ingots[j]++;
}
}
}
cout << ans;
}
