C1111233133313231133133313331333133313231121333133313331211111331221   >>    C111123313331323113313331333133313331323112133313331333121111133122   <<    C1111233133313231133133313331333133313231121333133313331211111331223   >>      C1111233133313231133133313331333133313231121333133313331211111331222   >>