#include <bits/stdc++.h>
using namespace std;
int main() {
  string str, str2;
  str2 = "?";
  cin >> str;
  str += '?';
  str2 += str;
  str = str2;
  int l, r;
  set<char> sp;
  sp.insert('a');
  sp.insert('b');
  sp.insert('c');
  l = 1;
  int tmp;
  int len = str.size();
  for (int i = 1; i < len - 1; i++) {
    if (str[i] != str[i + 1]) {
      tmp = i - l;
      if (tmp == 0)
        l = i;
      else if (tmp % 2 != 0) {
        for (int j = l; j < i; j += 2) {
          sp.erase(str[j - 1]);
          sp.erase(str[j + 1]);
          str[j] = (*sp.begin());
          sp.insert('a');
          sp.insert('b');
          sp.insert('c');
        }
      } else {
        for (int j = l + 1; j < i; j += 2) {
          sp.erase(str[j - 1]);
          sp.erase(str[j + 1]);
          str[j] = (*sp.begin());
          sp.insert('a');
          sp.insert('b');
          sp.insert('c');
        }
      }
      l = i + 1;
    }
  }
  cout << str.substr(1, len - 2) << endl;
}
