C132233133112121111331333133313231333133313231133133313331333232132221   >>    C13223313311212111133133313331323133313331323113313331333133323213222   <<    C132233133112121111331333133313231333133313231133133313331333232132223   >>      C132233133112121111331333133313231333133313231133133313331333232132222   >>