C11111211113313112113313331333133313331333132212111133133313331333131312112331   >>    C1111121111331311211331333133313331333133313221211113313331333133313131211233   <<    C11111211113313112113313331333133313331333132212111133133313331333131312112333   >>      C11111211113313112113313331333133313331333132212111133133313331333131312112332   >>