use proconio::input;

fn main() {
    input! {
        t:usize,
    }

    for _ in 0..t {
        input! {
            l:usize,
            r:usize,
        }

        let ans = (2 + f(r) % 2 - f(l - 1) % 2) % 2;
        println!("{}", ans);
    }
}

const NG: usize = 100000000;
fn f(m: usize) -> usize {
    let is_ok0 = |x| x * x <= m;

    let is_ok1 = |x| x * x * 2 <= m;

    (nibutan(0, NG, is_ok0) % 2 + nibutan(0, NG, is_ok1) % 2) % 2
}

fn nibutan<F>(mut ok: usize, mut ng: usize, is_ok: F) -> usize
where
    F: Fn(usize) -> bool,
{
    while ng - ok > 1 {
        let mid = (ok + ng) / 2;
        if is_ok(mid) {
            ok = mid;
        } else {
            ng = mid;
        }
    }

    ok
}