#include <bits/stdc++.h>
using namespace std;
#ifdef evenvalue
#include "debug.h"
#else
#define debug(...)
#endif
using int64 = long long;
using ld = long double;
template<typename T>
using min_heap = priority_queue<T, vector<T>, greater<T>>;
template<typename T>
using max_heap = priority_queue<T, vector<T>, less<T>>;
namespace Read {
int Int() {
int x;
cin >> x;
return x;
}
int64 Int64() {
int64 x;
cin >> x;
return x;
}
char Char() {
char c;
cin >> c;
return c;
}
string String() {
string s;
cin >> s;
return s;
}
double Double() {
return stod(String());
}
ld LongDouble() {
return stold(String());
}
template<typename T1, typename T2>
pair<T1, T2> Pair() {
pair<T1, T2> p;
cin >> p.first >> p.second;
return p;
}
template<typename T>
vector<T> Vec(const int n) {
vector<T> v(n);
for (T &x : v) {
cin >> x;
}
return v;
}
template<typename T>
vector<vector<T>> VecVec(const int n, const int m) {
vector<vector<T>> v(n);
for (vector<T> &vec : v) {
vec = Vec<T>(m);
}
return v;
}
}//namespace Read
constexpr int kInf = 1e9 + 10;
constexpr int64 kInf64 = 1e15 + 10;
constexpr int kMod = 1e9 + 7;
constexpr int kMaxN = 2e5 + 10;
inline void solution() {
const auto n = Read::Int();
const auto m = Read::Int();
const auto grid = Read::Vec<string>(n);
vector<vector<int>> below(n, vector<int>(m));
vector<vector<int>> right(n, vector<int>(m));
for (int j = 0; j < m; j++) {
below[n - 1][j] = (grid[n - 1][j] == 'I');
}
for (int i = 0; i < n; i++) {
right[i][m - 1] = (grid[i][m - 1] == 'O');
}
for (int i = n - 2; i >= 0; i--) {
for (int j = 0; j < m; j++) {
below[i][j] = below[i + 1][j] + (grid[i][j] == 'I');
}
}
for (int i = 0; i < n; i++) {
for (int j = m - 2; j >= 0; j--) {
right[i][j] = right[i][j + 1] + (grid[i][j] == 'O');
}
}
int64 ans = 0;
for (int i = 0; i < n; i++) {
for (int j = 0; j < m; j++) {
if (grid[i][j] != 'J') continue;
ans += right[i][j] * 1LL * below[i][j];
}
}
cout << ans << '\n';
}
int32_t main() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
//freopen(".in", "r", stdin);
//freopen(".out", "w", stdout);
cout << fixed << setprecision(10);
int testcases = 1;
//cin >> testcases;
while (testcases--) {
solution();
}
}
