What do these mean in print?
<pre><code>def greater_less_equal_5(answer):
if answer &gt; 5:
    return 1
elif answer &lt; 5:          
    return -1
else:
    return 0

print greater_less_equal_5(4)
print greater_less_equal_5(5)
print greater_less_equal_5(6)
</code></pre>

<p>What these number: 4,5,6 mean and do in the ending of print?</p>