C11112331312111112111133133313331333132322121111331323112331313221   >>    C1111233131211111211113313331333133313232212111133132311233131322   <<    C11112331312111112111133133313331333132322121111331323112331313223   >>      C11112331312111112111133133313331333132322121111331323112331313222   >>