#include <bits/stdc++.h>
using namespace std;
inline bool EQ(double a, double b) { return fabs(a - b) < 1e-9; }
const int64_t INF = 1 << 29;
inline int two(int n) { return 1 << n; }
inline int test(int n, int b) { return (n >> b) & 1; }
inline void set_bit(int& n, int b) { n |= two(b); }
inline void unset_bit(int& n, int b) { n &= ~two(b); }
inline int last_bit(int n) { return n & (-n); }
inline int ones(int n) {
  int res = 0;
  while (n && ++res) n -= n & (-n);
  return res;
}
template <class T>
void chmax(T& a, const T& b) {
  a = max(a, b);
}
template <class T>
void chmin(T& a, const T& b) {
  a = min(a, b);
}
void cf664() {
  string str;
  cin >> str;
  for (int i = 1; i < str.size(); i++) {
    if (str[i] == str[i - 1]) {
      while (str[i] == str[i - 1] ||
             ((i != (str.size() - 1)) && str[i] == str[i + 1])) {
        str[i]++;
        if (str[i] == '{') str[i] = 'a';
      }
    }
  }
  cout << str << endl;
}
int main() { cf664(); }
