gcj01-golfed

from sys import stdin as d
def dr(): return d.readline().rstrip()
def gr(): r1=int(dr())-1; return [ [ int(s) for s in dr().split() ] for z in [1]*4 ][r1]
nc=int(dr())
for i in range(nc):r=list(set(gr()).intersection(set(gr())));l=len(r);print ''.join(['Case #',str(i+1),': ',"Volunteer cheated!"if l==0 else"Bad magician!"if l>1 else`r[0]`])