C11111211113313112113313331333133313331333121131211113313221333223311   >>    C1111121111331311211331333133313331333133312113121111331322133322331   <<    C11111211113313112113313331333133313331333121131211113313221333223313   >>      C11111211113313112113313331333133313331333121131211113313221333223312   >>