tidy up, refactor program.cs by day

1 files changed, 9 insertions, 5 deletions

diff --git a/Day.cs b/Day.cs
index c02c37b..e12d7eb 100644
--- a/Day.cs
+++ b/Day.cs
@@ -1,13 +1,17 @@
-namespace aoc2019
+using System;
+
+namespace aoc2019
 {
     public abstract class Day
     {
+        public abstract int DayNumber { get; }
         public virtual void AllParts()
         {
-            Part1();
-            Part2();
+            Console.WriteLine($"Day {DayNumber}:");
+            Console.WriteLine(Part1());
+            Console.WriteLine(Part2());
         }
-        public abstract void Part1();
-        public abstract void Part2();
+        public abstract string Part1();
+        public abstract string Part2();
     }
 }