from math import log


def solve():
    sx, sy, tx, ty = map(int, input().split())
    log_sx = int(log(sx, 2)) if sx > 0 else 0
    log_tx = int(log(tx, 2)) if tx > 0 else 0

    x_mn = min(log_sx, log_tx)
    x_mx = max(log_sx, log_tx)

    if sy <= ty:
        move_up = ty - sy

        if ty == 0:
            move_side = x_mx - x_mn
        else:
            move_side = x_mx // ty - x_mn // ty
        print(move_up + move_side)
    else:  # sy > ty:
        move_down = sy - ty

        if sy == 0:
            move_side = x_mx - x_mn
        else:
            move_side = x_mx // sy - x_mn // sy
        print(move_down + move_side)


for _ in range(int(input())):
    solve()