#include <bits/stdc++.h>
using namespace std;
int n, m, k, arr[1005], ro[1005], co[1005];
char s[2000000];
int main() {
  int a, b;
  cin >> s + 1;
  a = count(s + 1, s + strlen(s + 1) + 1, 'x');
  b = count(s + 1, s + strlen(s + 1) + 1, 'y');
  for (int i = 1; i <= a - b; i++) cout << 'x';
  for (int i = 1; i <= b - a; i++) cout << 'y';
  cout << endl;
}
