C11112331312111112111133133313331333132322121111331323121312321   >>    C1111233131211111211113313331333133313232212111133132312131232   <<    C11112331312111112111133133313331333132322121111331323121312323   >>      C11112331312111112111133133313331333132322121111331323121312322   >>