C132233133112121111331333133313331323132313221131211113313123232321   >>    C13223313311212111133133313331333132313231322113121111331312323232   <<    C132233133112121111331333133313331323132313221131211113313123232323   >>      C132233133112121111331333133313331323132313221131211113313123232322   >>