C11111211113313112113313331333133313331333132212111133133313331333131121331231   >>    C1111121111331311211331333133313331333133313221211113313331333133313112133123   <<    C11111211113313112113313331333133313331333132212111133133313331333131121331233   >>      C11111211113313112113313331333133313331333132212111133133313331333131121331232   >>