C313212111113331323312111133133313331333133313331333133313331333133322231323121   >>    C31321211111333132331211113313331333133313331333133313331333133313332223132312   <<    C313212111113331323312111133133313331333133313331333133313331333133322231323123   >>      C313212111113331323312111133133313331333133313331333133313331333133322231323122   >>