C132233133112121111331333133313231333133313231311331333132311322221   >>    C13223313311212111133133313331323133313331323131133133313231132222   <<    C132233133112121111331333133313231333133313231311331333132311322223   >>      C132233133112121111331333133313231333133313231311331333132311322222   >>