Problem A

def s_a():
    t = int(input())
    arr = []
    for i in range(t):
       a, b = tuple([int(x) for x in input().split()])
       a1, b1 =(a, b)
       d = abs(a - b)
       if (d == 0):
           arr.append("0 0")
       elif (d == 1):
           arr.append("1 0")
       else:
           i = 0
           m = a % d
           if(m <= d//2):
               i = m
           else:
               i = d - m

           arr.append("{} {}".format(d,i))
    for el in arr:
        print(el)
# s_a()