C11111211113313112113313331333133313331333132313331333133313113313222122311   >>    C1111121111331311211331333133313331333133313231333133313331311331322212231   <<    C11111211113313112113313331333133313331333132313331333133313113313222122313   >>      C11111211113313112113313331333133313331333132313331333133313113313222122312   >>