#include <bits/stdc++.h>
using namespace std;
int main() {
  int n;
  cin >> n;
  if (n == 1)
    cout << "a";
  else if (n == 2)
    cout << "ab";
  else if (n == 3)
    cout << "aab";
  else {
    string s = "aab";
    for (int i = 0; i < n - 3; i++) {
      if (s[s.length() - 2] == 'a')
        s += 'b';
      else
        s += 'a';
    }
    cout << s;
  }
  cout << endl;
  return 0;
}
