C111123313121111121111331323133313331333132333133313121111331121322321321   >>    C11112331312111112111133132313331333133313233313331312111133112132232132   <<    C111123313121111121111331323133313331333132333133313121111331121322321323   >>      C111123313121111121111331323133313331333132333133313121111331121322321322   >>