C11112331333132311331333133313331333132311213331333133311111221   >>    C1111233133313231133133313331333133313231121333133313331111122   <<    C11112331333132311331333133313331333132311213331333133311111223   >>      C11112331333132311331333133313331333132311213331333133311111222   >>