C312322331333132212111133133313331323133313233313331333131111233121   >>    C31232233133313221211113313331333132313331323331333133313111123312   <<    C312322331333132212111133133313331323133313233313331333131111233123   >>      C312322331333132212111133133313331323133313233313331333131111233122   >>