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