C1111233131211111211113313331333133313232321333133313331333211232333133111   >>    C111123313121111121111331333133313331323232133313331333133321123233313311   <<    C1111233131211111211113313331333133313232321333133313331333211232333133113   >>      C1111233131211111211113313331333133313232321333133313331333211232333133112   >>