#include <iostream>

using namespace std;

int main()
{
    string s;
    cin >> s;
    long long x = 1;
    for(int i = 0;i < s.size();){
        if(s[i] == 'm' or s[i] == 'M'){
        x -= 1;
        i += 5;
        }
        if(s[i] == 't' or s[i] == 'T'){
        x *= 3;
        i += 8;
        }
        if(s[i] == 'd' or s[i] == 'D'){
        x *= 2;
        i += 5;
        }
    }
    cout << x<<endl;
    return 0;
}