/* -*- coding: utf-8 -*-
 *
 * 1895.cc:  No.1895 Mod 2 - yukicoder
 */

#include<cstdio>
#include<cmath>
#include<algorithm>
 
using namespace std;

/* constant */

/* typedef */

typedef long long ll;

/* global variables */

/* subroutines */

inline int sigmaf(ll n) {
  return (int)sqrt(n + 0.5) + (int)sqrt(n / 2 + 0.5);
}

/* main */

int main() {
  int tn;
  scanf("%d", &tn);

  while (tn--) {
    ll l, r;
    scanf("%lld%lld", &l, &r);

    int x = sigmaf(r) - sigmaf(l - 1);
    printf("%d\n", x & 1);
  }
  return 0;
}