#include <bits/stdc++.h>
using namespace std;
int main() {
  string s;
  cin >> s;
  int n = s.size();
  s += 'A';
  cout << s[0];
  for (int i = 1; i < n; i++)
    if (s[i] == s[i - 1]) {
      if (s[i] != 'a' && s[i + 1] != 'a')
        cout << 'a';
      else if (s[i] != 'b' && s[i + 1] != 'b')
        cout << 'b';
      else
        cout << 'c';
      s[i] = 'A';
    } else
      cout << s[i];
  return 0;
}
