C11111211113313112113313331333133313331333132313331333133313331322133112323111   >>    C1111121111331311211331333133313331333133313231333133313331333132213311232311   <<    C11111211113313112113313331333133313331333132313331333133313331322133112323113   >>      C11111211113313112113313331333133313331333132313331333133313331322133112323112   >>