C11112331333132311331333133313331333132332311331333133313132221   >>    C1111233133313231133133313331333133313233231133133313331313222   <<    C11112331333132311331333133313331333132332311331333133313132223   >>      C11112331333132311331333133313331333132332311331333133313132222   >>