C11111211113313112113313331333133313331312111133132212111112111133131223323221   >>    C1111121111331311211331333133313331333131211113313221211111211113313122332322   <<    C11111211113313112113313331333133313331312111133132212111112111133131223323223   >>      C11111211113313112113313331333133313331312111133132212111112111133131223323222   >>