D33132221323131133131323132321233131323223313223313133313233313221221   >>    D3313222132313113313132313232123313132322331322331313331323331322122   <<    D33132221323131133131323132321233131323223313223313133313233313221223   >>      D33132221323131133131323132321233131323223313223313133313233313221222   >>