#include <bits/stdc++.h>
using namespace std;
int n;
string s;
int main() {
  cin >> s;
  for (int i = 0; i < s.size(); i++) {
    if (s[i] == s[i + 1]) {
      char ans = 'a';
      while (ans == s[i + 1] || ans == s[i + 2]) ans++;
      s[i + 1] = ans;
    }
  }
  cout << s;
}
