Compile error

Hello,

I create a hash, and i want take the keys.
Using Deitel Book, i take this example:

numbers = 
         (
           1  => 'one',  
           3  => 'two',
           5  => 'three',   
           7  => 'four',  
           9  => 'five', 
         );
 @hashkey = keys (%numbers);

When I try to run come this message.
Undefined subroutine &main::chaves called at line

What's wrong ?

By,

Faria


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