C1111233131211111211113313331333133313232321333133313331333231323221232331   >>    C111123313121111121111331333133313331323232133313331333133323132322123233   <<    C1111233131211111211113313331333133313232321333133313331333231323221232333   >>      C1111233131211111211113313331333133313232321333133313331333231323221232332   >>