and the ruby equivalent:
"416D65726963612043616E20436F646520".scan(/../).map { |x| x.hex.chr }.join
=> "America Can Code " "416D65726963612043616E20436F646520".scan(/../).map { |x| x.hex.chr }.join
=> "America Can Code " ['416D65726963612043616E20436F646520'].pack('H*')
=> "America Can Code "