#include <bits/stdc++.h>
char s[1000000];
int main() {
  scanf("%s", s);
  for (int i = 1; s[i] != '\0'; i++)
    if (s[i] == s[i - 1])
      for (s[i] = 'a'; s[i] == s[i - 1] || s[i] == s[i + 1]; s[i]++)
        ;
  printf("%s\n", s);
}
