C111123313121111121111331333133313331312111113331333133313331333132322331333221   >>    C11112331312111112111133133313331333131211111333133313331333133313232233133322   <<    C111123313121111121111331333133313331312111113331333133313331333132322331333223   >>      C111123313121111121111331333133313331312111113331333133313331333132322331333222   >>