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<div class="code"><pre><span style="color:#080; font-weight:bold">for</span> a <span style="color:#080; font-weight:bold">in</span> <span style="color:#00D; font-weight:bold">0</span>..<span style="color:#00D; font-weight:bold">255</span>
a = a.chr
<span style="color:#080; font-weight:bold">begin</span>
x = eval(<span style="background-color:#fff0f0"><span style="color:#710">"</span><span style="color:#D20">?</span><span style="color:#04D">\\</span><span style="background-color:#fff0f0"><span style="color:#710">#{</span>a<span style="color:#710">}</span></span><span style="color:#710">"</span></span>)
<span style="color:#080; font-weight:bold">if</span> x == a[<span style="color:#00D; font-weight:bold">0</span>]
<span style="color:#080; font-weight:bold">next</span>
<span style="color:#080; font-weight:bold">else</span>
print <span style="background-color:#fff0f0"><span style="color:#710">"</span><span style="background-color:#fff0f0"><span style="color:#710">#{</span>a<span style="color:#710">}</span></span><span style="color:#D20">: </span><span style="background-color:#fff0f0"><span style="color:#710">#{</span>x<span style="color:#710">}</span></span><span style="color:#710">"</span></span>
<span style="color:#080; font-weight:bold">end</span>
<span style="color:#080; font-weight:bold">rescue</span> <span style="color:#036; font-weight:bold">SyntaxError</span> => boom
print <span style="background-color:#fff0f0"><span style="color:#710">"</span><span style="background-color:#fff0f0"><span style="color:#710">#{</span>a<span style="color:#710">}</span></span><span style="color:#D20">: error</span><span style="color:#710">"</span></span>
<span style="color:#080; font-weight:bold">end</span>
puts
<span style="color:#080; font-weight:bold">end</span>
</pre></div>
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