C11111211113313112113313331333133313331333132313331333133313331322221333311   >>    C1111121111331311211331333133313331333133313231333133313331333132222133331   <<    C11111211113313112113313331333133313331333132313331333133313331322221333313   >>      C11111211113313112113313331333133313331333132313331333133313331322221333312   >>