#include <bits/stdc++.h>

using namespace std;
string s;

string sub1(){
    string res = "";
    char tam = ' ';
    for(int i = 0; i < (int)s.size(); i++){
        if (res.empty() || s[i] != tam) {
            res.push_back(s[i]);
            tam = s[i];
        }
    }
    return res;
}

string sub2(){
    string res = "";
    bool C = false;
    char tam = ' ';
    for(int i = 0; i < (int)s.size(); i++){
        if (s[i] == '*') {
            C = true;
        } else {
            if (res.empty() || s[i] != tam || C) {
                res.push_back(s[i]);
                tam = s[i];
            }
            C = false;
        }
    }
    return res;
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);cout.tie(NULL);
    freopen("TINNHAN.INP", "r", stdin);
    freopen("TINNHAN.OUT", "w", stdout);
    cin>>s;
    bool flag = false;
    for(int i = 0; i < (int)s.size(); i++)
      if (s[i] == '*'){
            flag = 1;
            break;
      }


    if (!flag){
        cout<<sub1();
    }
    else {
        cout<<sub2();
    }
    return 0;
}