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// RUBY INTERACTIVE ALCHEMY BOOTH CHALLENGE

Start Learning Ruby Today

5 Ruby basics + 3 cross-language questions — run real Ruby code and claim your gift at the booth!

Q 1 / 5 ⭐ 0 correct
#
數字操作 Easy

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              challenge.rb
            

            

              

                

              

              

                

                

                  
                  
                

              

            

          


          
          

            
            
            ⏳ Loading mruby WASM…
          


          
          

            

              // OUTPUT
            

            

              Waiting for output…
            

          


          
          

        


        
        

          

            

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