#include <iostream>
#include <cstring>
#include<cstdio>
#include <cstdlib>
using namespace std;

char linie[130],sir[130],sir2[130],tsir[130];
int tip,var,vart,suma;

int cifra(char c)
{
    if('0'<=c && c<='9')return 1;
    return 0;
}

int main()
{
 //FILE *F=freopen("date.in","r",stdin);
 //freopen("date.out","w",stdout);

fgets(linie,120,stdin);
while(linie[0]!='\n')
{
suma=0;
int par=sscanf(linie,"%s %s %s",tsir,sir,sir2);
if(par==3){ strcpy(tsir,sir); strcpy(sir,sir2); }

if(tsir[0]=='c')tip=1;
if(tsir[0]=='s')tip=2;
if(tsir[0]=='i')tip=4;
int lun=strlen(sir);
var=0;
    vart=1;
  sir[lun]=','; sir[lun+1]='\0';
for(int i=0; i<=lun; i++)
{

    if(cifra(sir[i])){ var=var*10+sir[i]-'0'; }
 if(sir[i]==']'){vart*=var; var=0;  }
 if(sir[i]==',')
{
    if(sir[i-1]==']'){suma=suma+vart*tip; }
    else {suma+=tip;  }

vart=1; var=0;
}

}



printf("%d\n",suma);
    fgets(linie,120,stdin);
}

    return 0;
}