C11111211113313112113313331333133313331333132313331333133313331333131333212311   >>    C1111121111331311211331333133313331333133313231333133313331333133313133321231   <<    C11111211113313112113313331333133313331333132313331333133313331333131333212313   >>      C11111211113313112113313331333133313331333132313331333133313331333131333212312   >>