C111112111133131121133133313331333121111133313331333133322331323312331   >>    C11111211113313112113313331333133312111113331333133313332233132331233   <<    C111112111133131121133133313331333121111133313331333133322331323312333   >>      C111112111133131121133133313331333121111133313331333133322331323312332   >>