C22121333132313311211113313331333133313232233313331311331323133313123232321   >>    C2212133313231331121111331333133313331323223331333131133132313331312323232   <<    C22121333132313311211113313331333133313232233313331311331323133313123232323   >>      C22121333132313311211113313331333133313232233313331311331323133313123232322   >>