#include <bits/stdc++.h>
using namespace std;
int main() {
  string s;
  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;
}
