ll n, m, ans;
st s;
int main(){
  while(cin >> s){
    for(int i = 0;i < s.sz;++i){
      if(s[i] == 'b' || s[i] == 'e' || s[i] == 'h' || s[i] == 'k' || s[i] == 'n' || s[i] == 'q' || s[i] == 't' || s[i] == 'w' || s[i] == 'z' || s[i] ==',')
          ans+=2;
         if(s[i] == 'a' || s[i] == 'd' || s[i] == 'g' || s[i] == 'j' || s[i] == 'm' || s[i] == 'p' || s[i] == 's' || s[i] =='v'|| s[i] == 'y' || s[i] == '.')
             ans+=1;
         if(s[i] == 'c' || s[i] == 'f' || s[i] == 'i' || s[i] == 'l' || s[i] == 'o' || s[i] == 'r' || s[i] == 'u' || s[i] == 'x'|| s[i] == '!')
              ans+=3;
      }
      ans++;
      }
  cout << ans - 1;
    }