#include <iostream>
#include <cstring>
#include <string>
#include <sstream>
using namespace std;

int main()
{
    string a,word,w;
    int i,j,k=0,d,e;
    getline(cin,a);
    if(a[0]=='\n'){return 0;}
    char* b;
    int c[100];
    b=&a[0];
    while(strlen(b)!=0 && strlen(b)<=100){
        j=0;
        istringstream iss(a);
        iss>>word;
        if (word=="unsigned") iss>>word;
        if ((word=="char"&&(strlen(b)==4||strlen(b)==5))||(word=="int"&&(strlen(b)==3||strlen(b)==4))||(word=="short"&&(strlen(b)==4||strlen(b)==5)))return 0;
        if (word=="char"||word=="int"||word=="short"){
            w=word;
            iss>>word;
            b=&word[0];
            if(b[0]==',') return 0;
            i=0;
            //if(b[i]=='\0'&&)
            while(b[i]!='\0'){
                if((b[i]<97||b[i]>122)&&b[i]!=','&&b[i]!='['&&b[i]!=']') return 0;
                if(b[i]==',' && b[i-1]!=']'){j++;}
                if(b[i]==','&&b[i+1]==',')return 0;
                e=0;
                if(b[i]=='[')e=1;
                while(b[i]=='['){
                    i++;
                    d=0;
                    while(b[i]!=']'){
                        if(b[i]<48||b[i]>57) return 0;
                        d=d*10+(b[i]-'0');
                        i++;
                    }
                    e*=d;
                    if(b[i+1]=='[')i++;
                }
                j+=e;
                i++;
            }
            if (b[i-1]!=']')j++;
        }
        if (w=="char"){
                c[k]=j;
        } else if (w == "short"){
                c[k]=j*2;
        } else if (w == "int"){
                c[k]=j*4;
        }
        if (c[k]>=1000000000)return 0;
        k++;j=0;
        getline(cin,a);
        b=&a[0];
    }
    for(i=0;i<k;i++) cout<<c[i]<<"\n";
    return 0;
}