C31321211111333132331211113313331333133313121211113313223322321   >>    C3132121111133313233121111331333133313331312121111331322332232   <<    C31321211111333132331211113313331333133313121211113313223322323   >>      C31321211111333132331211113313331333133313121211113313223322322   >>