#include<iostream>
#include<string>
using namespace std;
int ans=0;
string s;

int main(){
    int p=0,nr=0,ok=0,t=0,k=0;
while(cin>>s){
    ans = 0;
    if(s=="unsigned")cin>>s;
    p=0;
    if(s=="int")p=4;
    else if(s=="char")p=1;
    else if(s=="short")p=2;
    cin>>s;
    nr=0;ok=0,t=1;k=0;
    for(int i=0;i<s.size();i++){
        if(s[i]==','){
            ans+=ok?t*p:p;
            nr=0;ok=0;
            t=1;k=0;
        }else if(s[i]>='0'&&s[i]<='9'&&ok){
        nr=nr*10+(s[i]-'0');
        }else if(s[i]=='['){ok=1;}
        else if(s[i]==']'){t=t*nr;nr=0;}
        else k=1;
    }
    if(k)ans+=ok?t*p:p;
    cout<<ans<<"\n";
}

}