C313212111133131211331333133313331333132212113313331322331312121   >>    C31321211113313121133133313331333133313221211331333132233131212   <<    C313212111133131211331333133313331333132212113313331322331312123   >>      C313212111133131211331333133313331333132212113313331322331312122   >>