from __future__ import with_statement
 
def solve(w,b):
    return "BLACK" if b%2==1 else "WHITE"
 
def eatFile(fin, fout):
    with file(fin,'r') as f1:
        N = int(f1.readline().replace("\n",''))
        with file(fout,'w') as f2:
            for case in xrange(1,N+1):
                w,b = [int(i) for i in f1.readline().replace("\n",'').split(' ')]
                s = solve(w,b)            
                #print "Case #%d: %s" % (case, s)
                f2.write("Case #%d: %s\n" % (case, s))
 
eatFile('A-large-practice.in','A-large-practice.out.txt')