#include <bits/stdc++.h>
using namespace std;
int execute() {
  int n, i;
  cin >> n;
  for (i = 0; i < n; i++) cout << i % 2;
  cout << endl;
  return 0;
}
char mtest = false;
unsigned short TE = 1;
int main() {
  ios_base::sync_with_stdio(false);
  if (mtest) cin >> TE;
  while (TE--) execute();
  return 0;
}
