C132233133112121111331333133313231333133313231311331333132313312321   >>    C13223313311212111133133313331323133313331323131133133313231331232   <<    C132233133112121111331333133313231333133313231311331333132313312323   >>      C132233133112121111331333133313231333133313231311331333132313312322   >>