import java.util.*;
import static java.lang.System.*;
import java.io.*;
import java.math.*;

public class Main {

	public static void main(String[] args) {
		FastScanner sc = new FastScanner();
		PrintWriter out = new PrintWriter(System.out);
		int n = sc.nextInt();
		long[] march = new long[5];
		long cnt = 0;
		for(int i = 0; i < n; i++) {
			char[] c = sc.next().toCharArray();
			if (c[0] == 'M')  {march[0]++; cnt++;}
			if (c[0] =='A') {march[1]++; cnt++;}
			if (c[0] =='R') { march[2]++;	 cnt++;}	
			if (c[0] =='C') { march[3]++;cnt++;}
			if (c[0] =='H') { march[4]++;cnt++;}
		}
		long ans = combination(cnt,3);
		
		//ダブリ検証
		for(int i = 0; i < 5; i++) {
			if (march[i] < 2 )continue;
			//2人ダブリ
			int count = 0;
			for(int j = 0; j < 5; j++) {
				if (i != j)
					count += march[j];
			}
			long num = combination(march[i], 2) * count;
			ans -= num;		
			//3人ダブリ
			if( march[i] < 3) continue;
			ans -= combination(march[i], 3);
		}
		
		out.println(ans);
		
		out.close();
	}
	//nCrの組み合わせを計算する
		public static long factorial(long n) {
			if (n <= 1)
				return 1;
			else {
				return n * factorial(n - 1);
			}
		}

		public static long combination(long n, long r) {
			long top = n;
			for (int i = 0; i < r - 1; i++) {
				top = top * (--n);
			}
			long bottom = factorial(r);
			return top / bottom;
		}

static class FastScanner {
    private final InputStream in = System.in;
    private final byte[] buffer = new byte[1024];
    private int ptr = 0;
    private int buflen = 0;
    private boolean hasNextByte() {
        if (ptr < buflen) {
            return true;
        }else{
            ptr = 0;
            try {
                buflen = in.read(buffer);
            } catch (IOException e) {
                e.printStackTrace();
            }
            if (buflen <= 0) {
                return false;
            }
        }
        return true;
    }
    private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;}
    private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}
    public boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; return hasNextByte();}
    public String next() {
        if (!hasNext()) throw new NoSuchElementException();
        StringBuilder sb = new StringBuilder();
        int b = readByte();
        while(isPrintableChar(b)) {
            sb.appendCodePoint(b);
            b = readByte();
        }
        return sb.toString();
    }
    public long nextLong() {
        if (!hasNext()) throw new NoSuchElementException();
        long n = 0;
        boolean minus = false;
        int b = readByte();
        if (b == '-') {
            minus = true;
            b = readByte();
        }
        if (b < '0' || '9' < b) {
            throw new NumberFormatException();
        }
        while(true){
            if ('0' <= b && b <= '9') {
                n *= 10;
                n += b - '0';
            }else if(b == -1 || !isPrintableChar(b)){
                return minus ? -n : n;
            }else{
                throw new NumberFormatException();
            }
            b = readByte();
        }
    }
    public int nextInt() {
        long nl = nextLong();
        if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException();
        return (int) nl;
    }
    public double nextDouble() { return Double.parseDouble(next());}
}
}

Measured memory_bytes: 38552