#include <bits/stdc++.h>
using namespace std;
const int MOD = 1000000007;
const int N = 100005;
const int M = 1000005;
int main() {
  int n;
  scanf("%d", &n);
  for (int i = 0; i < n; i++) cout << (i & 1);
  return 0;
}
