Added temporary sum

WinGreed/ResultSum.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace WinGreed
+{
+    public class ResultSum
+    {
+        public int NumSum { get; set; }
+        public string StrSum { get; set; }
+    }
+}