#include <iostream>
using namespace std;
int main(){
  string s;cin>>s;
  int a=0,b=0;
  for(int i = 0; 8 > i; i++){
    if(s[i] == 'l' || s[i] == 'o')a++;
    if(s[i] == 'a' || s[i] == 's')b++;
  }
  cout << (1<<(a+b))-(1<<a)-(1<<b)+1-(a+b==8) << endl;
}