p_add = raw_input('Vvedite ip address:')
oct1 = ip_add.split('.')
#oct2 = int(ip_add.split('.')
Ioct = int(oct1[0])

if 0 < Ioct < 224:
        print 'unicast'
elif 223 < Ioct < 239:
        print 'multicast'
elif oct1 == ['255','255','255','255']:
        print 'broadcast'
else:
        print 'unused'