C313212111113331323312111133133313331333133313331333133313331333131121132211111   >>    C31321211111333132331211113313331333133313331333133313331333133313112113221111   <<    C313212111113331323312111133133313331333133313331333133313331333131121132211113   >>      C313212111113331323312111133133313331333133313331333133313331333131121132211112   >>