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+id = 163
+name = 'flower/2'
+slug = 'words like +++--+++'
+
+description = '''\
+<p>Write a DCG with the starting symbol <code>flower</code> for the language <code>+<sup>n</sup>-<sup>m</sup>+<sup>n</sup></code>, where m > 0 and n ≥ 0.</p>
+<p>Example words: <code>-</code>, <code>++-++</code>, <code>+---+</code>.</p>
+'''
+
+hint = {}