#include<bits/stdc++.h>
using namespace std;
int main(){
	string s;
	int c=0;
	cin>>s;
	for(int i=0;i<s.size();i++){
		if(s[i]>='0'&&s[i]<='9'){
			c=c*10+int(s[i]-'0');
			
		}
			
		else{
			if(c==0)cout<<s[i];
		   else  {
		   	
		   	for(int j=1;j<=c;j++){
					cout<<s[i];
		   	
		   }
			 c=0;
			   
			}
		}
	}
	 
	
	
    return 0;	
}
/**************************************************************
	Problem: 1104
	User: chenlingxuan
	Language: C++
	Result: Accepted
	Time:14 ms
	Memory:2076 kb
****************************************************************/