C21321133133313121211113313331323133313231333132233132313331323311221   >>    C2132113313331312121111331333132313331323133313223313231333132331122   <<    C21321133133313121211113313331323133313231333132233132313331323311223   >>      C21321133133313121211113313331323133313231333132233132313331323311222   >>