C11111211113313112113313331333133313331333132313331333133313331311312121133111   >>    C1111121111331311211331333133313331333133313231333133313331333131131212113311   <<    C11111211113313112113313331333133313331333132313331333133313331311312121133113   >>      C11111211113313112113313331333133313331333132313331333133313331311312121133112   >>