C312322331333132212111133133313331333133312121111331333131113331323233211121   >>    C31232233133313221211113313331333133313331212111133133313111333132323321112   <<    C312322331333132212111133133313331333133312121111331333131113331323233211123   >>      C312322331333132212111133133313331333133312121111331333131113331323233211122   >>