#include <bits/stdc++.h>
using namespace std;
bool Check(int N, int pos) { return (bool)(N & (1 << pos)); }
int Set(int N, int pos) { return N = N | (1 << pos); }
int fx[] = {+0, +0, +1, -1, -1, +1, -1, +1};
int fy[] = {-1, +1, +0, +0, +1, +1, -1, -1};
int hr[] = {-2, -2, -1, +1, +2, +2, -1, +1};
int hc[] = {+1, -1, +2, +2, -1, +1, -2, -2};
int dx[] = {+1, -1, +0, +0};
int dy[] = {+0, +0, +1, -1};
const int MAXN = (int)1e5 + 9;
int main() {
  int i, j, k, l, m, n, p, q, x, y, u, v, r, tc, t;
  cin >> n;
  if (n == 1)
    cout << "a" << endl;
  else if (n == 2)
    cout << "ab" << endl;
  else {
    string s = "ab";
    for (int i = 2; i <= (int)n - 1; i++) {
      if (s[i - 2] == 'a')
        s += 'b';
      else
        s += 'a';
    }
    cout << s << endl;
  }
  return 0;
}
