line = raw_input()
test = 0
 
while line != "0 0":
    test += 1
    d = {'0':0,'1':0,'2':0,'3':0,'4':0,'5':0,'6':0,'7':0,'8':0,'9':0}
    a = map(int,line.split())
    for i in xrange(min(a),max(a)+1):
        for c in str(i):
            d[c] += 1
    pairs = d.items()
    pairs.sort()        
    print "% (test, " ".join(["%s:%s" % (k,v) for k,v in pairs]))
    line = raw_input()