#include <iostream>
#include <cstdio>
#include <cstring>
#define u 100
using namespace std;
int v[u+5],a[u+5];
char s[110],*p;


void seal()
{
    int i;
    for (i=u;i>=1;i--)
        if (a[i]>9) {
            a[i-1]+=a[i]/10;
            a[i]%=10;
        }

}
void solve()
{
    int i=0,j,x;
    if (s[i]=='u'&&s[i+1]=='n') {
        while (s[i]!=' ')
            i++;
        i++;
    }
    while (s[i]!=' ')
        i++;
    while (s[i]==' ')
        i++;
    while (s[i]!=NULL&&s[i]!='\n') {
        for (j=1;j<=u;j++)
            a[j]=0;
        a[u]=1;
        if (s[i]==',')
            i++;
        while ('a'<=s[i]&&s[i]<='z')
            i++;
        while (s[i]=='[') {
            i++;
            x=0;
            while ('0'<=s[i]&&s[i]<='9') {
                x=x*10+s[i]-'0';
                i++;
            }
            a[u]*=x;
            seal();
            if (s[i]==']')
                i++;
        }
        for (j=1;j<=u;j++)
            v[j]+=a[j];
    }
    i=1;


    i=0;
    if (s[i]=='u'&&s[i+1]=='n') {
        while (s[i]!=' ')
            i++;
        i++;
    }
    if (s[i]=='i'&&s[i+1]=='n')
        for (i=1;i<=u;i++)
            v[i]*=4;
    if (s[i]=='s'&&s[i+1]=='h')
        for (i=1;i<=u;i++)
            v[i]*=2;
    for (i=u;i>=1;i--)
        if (v[i]>9) {
            v[i-1]+=v[i]/10;
            v[i]%=10;
        }
    while (v[i]==0)
        i++;
    for (j=i;j<=u;j++)
        cout<<v[j];
    cout<<'\n';
    for (i=1;i<=u;i++) {
        v[i]=0;
        a[i]=0;
    }
}

int main()
{
    int i,j;
    fgets(s,105,stdin);
    while (strlen(s)) {
        solve();
        memset(s,0,sizeof(s));
        fgets(s,105,stdin);
    }

    return 0;
}