#include <bits/stdc++.h>
using namespace std;
const int MAXN = 1000 + 10;
int n, m;
int l[MAXN], r[MAXN];
char s[MAXN];
bool vis[MAXN];
int main() {
  scanf("%d%d", &n, &m);
  for (int i = 1; i <= n; i++) {
    s[i] = '0';
  }
  for (int i = 0; i < m; i++) {
    scanf("%d%d", &l[i], &r[i]);
  }
  for (int i = 1; i <= n; i++) {
    if (i % 2 == 0)
      s[i] = '0';
    else
      s[i] = '1';
  }
  for (int i = 1; i <= n; i++) {
    printf("%c", s[i]);
  }
  printf("\n");
}
