C31231211111133131211113313331323133313331311233133313332233132223133313222321   >>    C3123121111113313121111331333132313331333131123313331333223313222313331322232   <<    C31231211111133131211113313331323133313331311233133313332233132223133313222323   >>      C31231211111133131211113313331323133313331311233133313332233132223133313222322   >>