C31321211111333132331211113313331333133313331333133313311211113313233232221   >>    C3132121111133313233121111331333133313331333133313331331121111331323323222   <<    C31321211111333132331211113313331333133313331333133313311211113313233232223   >>      C31321211111333132331211113313331333133313331333133313311211113313233232222   >>