C11111211113313112113313331333133312111113331333133313331121133133313331322311   >>    C1111121111331311211331333133313331211111333133313331333112113313331333132231   <<    C11111211113313112113313331333133312111113331333133313331121133133313331322313   >>      C11111211113313112113313331333133312111113331333133313331121133133313331322312   >>