C111123313121111121111331333133313331333133313121111331211113313331323132321321   >>    C11112331312111112111133133313331333133313331312111133121111331333132313232132   <<    C111123313121111121111331333133313331333133313121111331211113313331323132321323   >>      C111123313121111121111331333133313331333133313121111331211113313331323132321322   >>