#include <cstdio>
#include <string>
#include <iostream>

using namespace std;

int ml;
string tp, s;

int main()
{
   // freopen("decl.in", "r", stdin);
    while(cin>>tp)
    {
        if(tp=="unsigned")
            cin>>tp;

        if(tp=="char")
            ml=1;
        else
        if(tp=="short")
            ml=2;
        else
        if(tp=="int")
            ml=4;

        cin>>s;
        int tot=0, cr=0, ccr=1, st=0;
        for(int i=0; i<s.size(); ++i)
        {
            if(s[i]>='0' && s[i]<='9')
            {
                st=1;
                cr=cr*10+s[i]-'0';
            }
            else
            if(s[i]==',')
            {
                tot+=ccr;
              //  cout<<tot<<ccr;
                ccr=1;
                cr=0;
                st=0;
            }
            else
            if(st==1)
            {
                st=0;
                ccr*=cr;
                cr=0;
            }
        }
        tot+=ccr;
        cout<<tot*ml<<"\n";
    }
    return 0;
}