C22213331333133313112331323133313331333133313232321333131133133311231221   >>    C2221333133313331311233132313331333133313331323232133313113313331123122   <<    C22213331333133313112331323133313331333133313232321333131133133311231223   >>      C22213331333133313112331323133313331333133313232321333131133133311231222   >>