C313212111113331323312111133133313331333133313331333133313331323312121121   >>    C31321211111333132331211113313331333133313331333133313331333132331212112   <<    C313212111113331323312111133133313331333133313331333133313331323312121123   >>      C313212111113331323312111133133313331333133313331333133313331323312121122   >>