use proconio::{fastout, input};

#[fastout]
fn main() {
    input! { t: usize }

    for _ in 0..t {
        input! {
            sx: u128, sy: u128,
            tx: u128, ty: u128,
        }
        let ans = solve(sx, sy, tx, ty);
        println!("{ans}");
    }
}

fn solve(sx: u128, sy: u128, tx: u128, ty: u128) -> u128 {
    if sy != ty {
        let y = sy.max(ty);
        return sy.abs_diff(ty) + solve(sx, y, tx, y);
    }

    let mut ans = u128::MAX;
    for y in sy.. {
        let w = 2u128.saturating_pow(y.min(u32::MAX as _) as _);
        let sq = sx / w;
        let tq = tx / w;
        let cand = y.abs_diff(sy) * 2 + sq.abs_diff(tq);
        ans = ans.min(cand);

        if sq == tq {
            break;
        }
    }

    ans
}