//
//  main.cpp
//  十一届蓝桥杯解码
//
//  Created by 魏浩洋 on 2020/7/16.
//  Copyright ? 2020 魏浩洋. All rights reserved.
//

#include<iostream>
#include<cstdio>
#include<string>
#include<cstring>
using namespace std;


string res;
char last_char;


bool judge_char(char a)
{
    if((a>='a'&&a<='z')||(a>='A'&&a<='Z')) return true;
    else return false;
}

bool judge_num(char a)
{
    if(a>='0'&&a<='9')
    return true;
    else return false;
}
int char_to_num(char a)
{
    int num=a-'0';
    return num;
}
int main()
{
    string str;
    cin>>str;

    last_char=str[0];
    res.push_back(str[0]);


    for(int i=1;i<str.length();i++)
    {
        if(judge_num(str[i])&&judge_char(last_char))
        {
            int a=char_to_num(str[i])-1;
            while(a--)
            {
                res.push_back(last_char);
            }
            last_char=str[i];
        }
        if(judge_char(str[i]))
        {
            res.push_back(str[i]);
            last_char=str[i];
        }
    }
    cout<<res<<endl;
    return 0;


}