#include <bits/stdc++.h>
using namespace std;
int main() {
  string S;
  int i, j;
  cin >> S;
  reverse(S.begin(), S.end());
  S += '.';
  reverse(S.begin(), S.end());
  S += '.';
  for (i = 1; i < (int)S.length() - 1; ++i) {
    if (S[i] == S[i - 1]) {
      if (S[i - 1] != 'a' && S[i + 1] != 'a') S[i] = 'a';
      if (S[i - 1] != 'b' && S[i + 1] != 'b') S[i] = 'b';
      if (S[i - 1] != 'c' && S[i + 1] != 'c') S[i] = 'c';
    }
    cout << S[i];
  }
  return 0;
}
