C1111233131211111211113313331333133313232321333133313311221323132333131   >>    C111123313121111121111331333133313331323232133313331331122132313233313   <<    C1111233131211111211113313331333133313232321333133313311221323132333133   >>      C1111233131211111211113313331333133313232321333133313311221323132333132   >>