C111113331333132322331333133313331311331312111133131133123313232211   >>    C11111333133313232233133313331333131133131211113313113312331323221   <<    C111113331333132322331333133313331311331312111133131133123313232213   >>      C111113331333132322331333133313331311331312111133131133123313232212   >>