#include<cstdio>
#include<cstring>
#include<cctype>

using namespace std;

long long sum,nr,m;
int i,n;
char s[102];

long long eval(int &i)
{
    int ans=0;
    while(isdigit(s[i]))
    {
        ans*=10;
        ans+=s[i]-48;
        i++;
    }
    return ans;
}

int main()
{
    //freopen("decl.in","r",stdin);
    //freopen("decl.out","w",stdout);
    while(gets(s+1))
    {
        n=strlen(s+1);
        i=1;
        sum=0;
        if(s[1]=='u'&&s[2]=='n')
        {
            i=10;
            if(s[10]=='c')
            {
                m=1;
                i=16;
            }
            if(s[10]=='i')
            {
                m=4;
                i=15;
            }
            if(s[10]=='s')
            {
                m=2;
                i=17;
            }
        }
        else
        {
            if(s[1]=='c')
            {
                m=1;
                i=6;
            }
            if(s[1]=='i')
            {
                m=4;
                i=5;
            }
            if(s[1]=='s')
            {
                m=2;
                i=7;
            }
        }
        nr=1;
        for(;i<=n;)
        {
            while(isalpha(s[i]))
            {
                i++;
            }
            if(s[i]==',')
            {
                sum+=m*nr;
                i++;
            }
            nr=1;
            while(s[i]=='[')
            {
                i++;
                nr*=eval(i);
                i++;
            }
        }
        sum+=m*nr;
        printf("%lld\n",sum);
    }
}