C1111233131211111211113313331333133313331333133313331333133313111132221   >>    C111123313121111121111331333133313331333133313331333133313331311113222   <<    C1111233131211111211113313331333133313331333133313331333133313111132223   >>      C1111233131211111211113313331333133313331333133313331333133313111132222   >>