#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 (char j = 'a'; j <= 'z'; j++)
        if (s[i - 1] != j && s[i + 1] != j) {
          s[i] = j;
          break;
        }
  }
  cout << s << endl;
}
