Duration - HackerEarth Solution

t = int(input())
s=[]
for i in range(t):
    c = input()
    c = c.split(' ')
    h = 0
    m = 0
    a = int(c[0])*60+int(c[1])
    b = int(c[2])*60+int(c[3])
    d = b-a
    s.append(d//60)
    s.append(d%60)

for i in range(0, len(s),2):
    print(s[i], s[i+1])