C11112331312111112111133133313231333132313331333132233131322321   >>    C1111233131211111211113313331323133313231333133313223313132232   <<    C11112331312111112111133133313231333132313331333132233131322323   >>      C11112331312111112111133133313231333132313331333132233131322322   >>