#include <iostream>
#include<string.h>

using namespace std;

int t[5],lung_tip,i,n,j,nr,nr_part,ll,nrk,z;
char c[105];
char cuv[50];

int main() {
	
	while(cin.getline(c,256))
	{
	i=0;
	n=strlen(c);
	j=0;
	
		memset(cuv, 0, 50);		
		while(c[i]!=' '&&i<n)
		{
			cuv[j]=c[i];
			j++;
			i++;
		}
		
		
		if(strcmp(cuv,"int")==0)lung_tip=4;
		else
		if(strcmp(cuv,"short")==0)lung_tip=2;
		else
		if(strcmp(cuv,"char")==0)lung_tip=1;
		else
		if(strcmp(cuv,"unsigned")==0)
			{
				memset(cuv, 0, 50);
				j=0;
				i++;
				while(c[i]!=' '&&i<n)
					{
						cuv[j]=c[i];
						j++;
						i++;
					}
			
				if(strcmp(cuv,"int")==0)lung_tip=4;
					else
					if(strcmp(cuv,"short")==0)lung_tip=2;
						else
						if(strcmp(cuv,"char")==0)lung_tip=1;			
			}
				
		
		nr=0;
		nr_part=1;
		while(i<n)
		{
		if(c[i]==','){nr+=nr_part;nr_part=1;}
		else 
		if(c[i]==']')
			{
			ll=i-1;
			nrk=0;
			z=1;
			while(c[ll]!='[')
			{
			nrk=(c[ll]-'0')*z+nrk;
			z*=10;
			ll--;	
			}
					nr_part*=nrk;
			}
		i++;	
		}
	nr+=nr_part;
	cout<<nr*lung_tip<<endl;
	}
	
return 0;	
}