D33132221323131133131323132321233131323223313223313233313331123311   >>    D3313222132313113313132313232123313132322331322331323331333112331   <<    D33132221323131133131323132321233131323223313223313233313331123313   >>      D33132221323131133131323132321233131323223313223313233313331123312   >>