C313212111113331323312111133133313331333133313331333133313331311212312121   >>    C31321211111333132331211113313331333133313331333133313331333131121231212   <<    C313212111113331323312111133133313331333133313331333133313331311212312123   >>      C313212111113331323312111133133313331333133313331333133313331311212312122   >>