#include<bits/stdc++.h>
using namespace std;
int n, m, a, r, c, h;
string s;
int main(void) { 
	cin >> n;
	for (int i = 1; i <= n; i++) {
	    cin >> s;
		if (s[0] == 'M') m++;
		else if (s[0] == 'A') a++;
		else if (s[0] == 'R') r++;
		else if (s[0] == 'C') c++;
		else if (s[0] == 'H') h++;
	}
	cout << 1ll * (m*a*r + m*a*c + m*a*h + m*r*c + m*r*h + m*c*h + a*r*c + a*r*h + a*c*h + r*c*h) << endl;
	return 0;
} 

样例全对，但就是WA，谁能帮帮我啊……