C313212111113331323312111133133313331333133313331333133313331333112113122221   >>    C31321211111333132331211113313331333133313331333133313331333133311211312222   <<    C313212111113331323312111133133313331333133313331333133313331333112113122223   >>      C313212111113331323312111133133313331333133313331333133313331333112113122222   >>