C1111233131211111211113313331333133313331323331333132313331311113231   >>    C111123313121111121111331333133313331333132333133313231333131111323   <<    C1111233131211111211113313331333133313331323331333132313331311113233   >>      C1111233131211111211113313331333133313331323331333132313331311113232   >>