#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  string s(n, 'a');
  string st = "abc";
  for (int i = 2; i < n; i++) {
    if (s[i] == s[i - 2]) {
      s[i] = st[s[i] - 'a' + 1];
    }
  }
  cout << s;
  return 0;
}
