C11112331312111112111133133313331333132311211331323131133132313331333133313221   >>    C1111233131211111211113313331333133313231121133132313113313231333133313331322   <<    C11112331312111112111133133313331333132311211331323131133132313331333133313223   >>      C11112331312111112111133133313331333132311211331323131133132313331333133313222   >>