Update test17.rb
Update test17.rb

result:
https://paiza.jp/poh/joshibato/matsue-ruby/result/27c08720
neetsdkasu/Paiza-POH-MyAnswers,neetsdkasu/Paiza-POH-MyAnswers,neetsdkasu/Paiza-POH-MyAnswers,neetsdkasu/Paiza-POH-MyAnswers,neetsdkasu/Paiza-POH-MyAnswers,neetsdkasu/Paiza-POH-MyAnswers,neetsdkasu/Paiza-POH-MyAnswers,neetsdkasu/Paiza-POH-MyAnswers,neetsdkasu/Paiza-POH-MyAnswers,neetsdkasu/Paiza-POH-MyAnswers,neetsdkasu/Paiza-POH-MyAnswers,neetsdkasu/Paiza-POH-MyAnswers,neetsdkasu/Paiza-POH-MyAnswers,neetsdkasu/Paiza-POH-MyAnswers