#include <iostream>
#include <string>
 
using namespace std;
 
int main() {
 
string s; cin >> s;
int n = s.size();
s += '#';
char last = '-';
for (int i = 0; i < n; i++) {
int j = i;
while (s[j] == s[i]) j++;
j--;
 
if (i == j) { last = s[i]; continue;}
 
string t = "!!";
int k = 0;
for (char ch = 'a'; ch <= 'z' && k < 2; ch++)
if (ch != s[i] && ch != last && ch != s[j+1]) t[k++] = ch;
last = s[i];
k = 0;
for (int l = i+1; l <= j; l+=2)
s[l] = t[k], k ^= 1;
 
i = j;
}
s.pop_back();
 
cout << s << endl;
 
	return 0;
}

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