C31321211113313121133133313331333133313331123313331323311221221   >>    C3132121111331312113313331333133313331333112331333132331122122   <<    C31321211113313121133133313331333133313331123313331323311221223   >>      C31321211113313121133133313331333133313331123313331323311221222   >>