def solve():
    A, B, C, D, E = map(int, input().split())

    X = A
    Y = A
    for H in [A, B, C, D, E]:
        if H > X:
            X = H
        if H < Y:
            Y = H
    return X - Y

#==================================================
T = int(input())
print(*[solve() for _ in range(T)], sep = "\n")