C11111211113313112113313331333133313331333132313331333133313111133132313232311   >>    C1111121111331311211331333133313331333133313231333133313331311113313231323231   <<    C11111211113313112113313331333133313331333132313331333133313111133132313232313   >>      C11111211113313112113313331333133313331333132313331333133313111133132313232312   >>