#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef unsigned long long int ull;

mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
ll myRand(ll B) { return (ull)rng() % B; }

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    string s;
    cin >> s;
    int a = 0, b = 0;
    for (char c : s) {
        if (c == 'l' or c == 'o') a += 1;
        if (c == 'a' or c == 's') b += 1;
    }
    cout << max(0,((1 << a) - 1) * ((1 << b) - 1) - (a+b == 8)) << endl;
}