C11111333133313232233133313331333131133132313311211111211111333131311222132211   >>    C1111133313331323223313331333133313113313231331121111121111133313131122213221   <<    C11111333133313232233133313331333131133132313311211111211111333131311222132213   >>      C11111333133313232233133313331333131133132313311211111211111333131311222132212   >>