t=input()
for i in range(t):
    h1,m1,h2,m2 = map(int,raw_input().split())
    k=input()
    rh = h1+ k
    rm = m1
    # print rh, rm
    if rm==m2 and rh == h2:
        print "0"
    elif rm==m2:
        print (rm-m2) + (((rh - h2)-1)*60)
        
    elif rm>m2:
        print (rm-m2) + (((rh - h2))*60)
    else:
        print (rm-m2) + ((rh - h2)*60)