C11111211113313112113313331333132313331331121111331333133313331323132231   >>    C1111121111331311211331333133313231333133112111133133313331333132313223   <<    C11111211113313112113313331333132313331331121111331333133313331323132233   >>      C11111211113313112113313331333132313331331121111331333133313331323132232   >>