#define _USE_MATH_DEFINES
#include <algorithm>
#include <cstdio>
#include <functional>
#include <iostream>
#include <cfloat>
#include <climits>
#include <cstring>
#include <cmath>
#include <map>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <string>
#include <time.h>
#include <vector>
using namespace std;

typedef long long ll;
typedef unsigned long long ull;
typedef pair<int, int> i_i;
typedef pair<ll, int> ll_i;
typedef pair<double, int> d_i;
typedef pair<ll, ll> ll_ll;
typedef pair<double, double> d_d;
struct edge { int u, v; ll w; };

ll MOD = 1000000007;
ll _MOD = 1000000009;
double EPS = 1e-10;

int main() {
	vector<int> c(26);
	for (int i = 0; i < 26; i++) cin >> c[i];
	ll ans = 1;
	ans *= c['h' - 'a'];
	ans *= c['e' - 'a'];
	ans *= c['l' - 'a'] * (c['l' - 'a'] - 1) * (c['l' - 'a'] - 2) / 6;
	ans *= c['o' - 'a'] * (c['o' - 'a'] - 1) / 2;
	ans *= c['w' - 'a'];
	ans *= c['d' - 'a'];
	cout << ans << endl;
}