#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main()
{
    char s[100];
    int answ[100];
    int k=0;
    while (scanf(" %[^\n]s",s)==1) {
        int type=0;
        int i=0;
        int sum=0;
        if (s[0]=='c') {
            type=1;
            while (s[i]!=' ') {
                i++;
            }
        }
        else if (s[0]=='s') {
            type=2;
            while (s[i]!=' ') {
                i++;
            }
        }
        else if (s[0]=='i') {
            type=4;
            while (s[i]!=' ') {
                i++;
            }
        }
        else {
            while (s[i]!=' ') {
                i++;
            }
            i++;
            if (s[i]=='c') {
                type=1;
            }
            else if (s[i]=='s') {
                type=2;
            }
            else if (s[i]=='i') {
                type=4;
            }
            while (s[i]!=' ') {
                i++;
            }
        }
        i++;
        while (1==1) {
            while ((s[i]!=',') && (s[i]!='[') && (i<strlen(s))) {
                i++;
            }
            if (i>=strlen(s)) {
                if (s[i-1]!=']') {
                    sum=sum+type;
                }
                break;
            }
            else if (s[i]==',') {
                i++;
                sum=sum+type;
            }
            else {
                i++;
                int dim=1;
                while ((s[i]!=',') && (i<strlen(s))) {
                    char temp[10];
                    int j=0;
                    while (s[i]!=']') {
                        temp[j]=s[i];
                        j++;
                        i++;
                    }
                    temp[j]='\0';
                    dim*=atoi(temp);
                    i++;
                    if (s[i]=='[') {
                        i++;
                    }
                }
                sum+=dim*type;
                i++;
            }
        }
        answ[k]=sum;
        k++;
    }
    int i;
    for (i=0;i<k;i++)
    {
        printf("%d\n",answ[i]);
    }
    return 0;
}