Commit 61783db

@@ -46,7 +46,7 @@ class Solution
         for q in (p+1...cards.size)
           z = cache[cards[q]]
           if x.match?(y, z)
-            return [x, y, z].map(&:to_s).join(' ')
+            return [x, y, z].join(' ')
           end
         end
       end