C1111233131211111211113313331333133313232321331133132313331311331132321   >>    C111123313121111121111331333133313331323232133113313231333131133113232   <<    C1111233131211111211113313331333133313232321331133132313331311331132323   >>      C1111233131211111211113313331333133313232321331133132313331311331132322   >>