#include <iostream>
#include <cstring>

using namespace std;

char s[256],c[256];

int i,x,p;

int main()
{
    cin>>s;
    for(i=0;i<strlen(s);)
    {
        if(s[i]=='(')
        {
            i++;
            p=0;
           while(s[i]!=')')
        {
            c[p++]=s[i++];
        }
        i++;
        c[p]=NULL;
        x=0;
        while(s[i]-'0'>=0&&s[i]-'0'<=9)
        {
            x=x*10+s[i]-'0';
            i++;
        }
        for(p=1;p<=x;p++)
            cout<<c;
        }
        else
            cout<<s[i++];
    }
    return 0;
}