#include <bits/stdc++.h>
using namespace std;
string s;
int main() {
  cin >> s;
  for (int i = 1; i < s.size(); i++)
    if (s[i] == s[i - 1])
      for (s[i] = 'a'; s[i] == s[i - 1] || s[i] == s[i + 1]; s[i]++)
        ;
  cout << s << endl;
}
