#include <bits/stdc++.h>
using namespace std;
int main() {
  string a;
  cin >> a;
  int n = a.length();
  for (int i = 0; i < n; i++) {
    int j = i;
    while (a[j] == a[j + 1]) j++;
    for (int r = i + 1; r <= j; r += 2)
      if (a[j + 1] != 'a' && a[r] != 'a')
        a[r] = 'a';
      else if (a[j + 1] != 'b' && a[r] != 'b')
        a[r] = 'b';
      else
        a[r] = 'c';
  }
  cout << a;
}
