C11112331333132311331333133313331333132311213331333133312111111331121221   >>    C1111233133313231133133313331333133313231121333133313331211111133112122   <<    C11112331333132311331333133313331333132311213331333133312111111331121223   >>      C11112331333132311331333133313331333132311213331333133312111111331121222   >>