import sys
readline = sys.stdin.readline

def f(x):
    yes = 0
    no = 10 ** 9
    while no - yes != 1:
        mid = (yes + no)//2
        if mid * mid <= x:
            yes = mid
        else:
            no = mid
    ans = yes

    yes = 0
    no = 10 ** 9
    while no - yes != 1:
        mid = (yes + no)//2
        if 2 * mid * mid <= x:
            yes = mid
        else:
            no = mid
    return (ans + yes) % 2
    

T = int(readline())
for _ in range(T):
    L, R = map(int, readline().split())
    print((f(R) - f(L - 1)) % 2)