#include <bits/stdc++.h>
using namespace std;
int main() {
  int n = 0, m = 0;
  string s;
  cin >> s;
  for (int i = 0; i < s.length(); i++)
    if (s[i] == 'x')
      n++;
    else
      m++;
  if (n > m)
    for (int i = 1; i <= n - m; i++) cout << "x";
  else if (n < m)
    for (int i = 1; i <= m - n; i++) cout << "y";
  return 0;
}
