C11112331312111112111133133313331333133313331333133313113313231333132333221   >>    C1111233131211111211113313331333133313331333133313331311331323133313233322   <<    C11112331312111112111133133313331333133313331333133313113313231333132333223   >>      C11112331312111112111133133313331333133313331333133313113313231333132333222   >>