C1111233131211111211113313331333133313331312211113313331313331323132333133311   >>    C111123313121111121111331333133313331333131221111331333131333132313233313331   <<    C1111233131211111211113313331333133313331312211113313331313331323132333133313   >>      C1111233131211111211113313331333133313331312211113313331313331323132333133312   >>