#include <bits/stdc++.h>
using namespace std;
int main() {
  int n, m, u, v;
  cin >> n >> m;
  char str[n + 1];
  while (m--) cin >> u >> v;
  for (int i = 1; i <= n; i++) {
    if (i % 2)
      str[i] = '1';
    else
      str[i] = '0';
  }
  str[n + 1] = '\0';
  cout << str + 1 << endl;
  return 0;
}
