fix: Fixed Day 2 - part 2 not working yet

Day3/Program.cs

@@ -3,10 +3,11 @@
 string input = File.ReadAllText("input.txt").ReplaceLineEndings("");
 int total = 0;
 
-Regex valid = new Regex("mul\\((?<x>[0-9]+),(?<y>[0-9]+)\\)");
-Regex dontandDo = new Regex("(don\\'t\\(\\).*?do\\(\\))");
+Regex valid = new Regex(@"mul\((?<x>[0-9]+),(?<y>[0-9]+)\)");
+Regex dontandDo = new Regex(@"(don\'t\(\).*?do\(\))");
 
 input = dontandDo.Replace(input, "");
+int muls = valid.Count(input);
 
 List<(int x, int y)> multiplies = new();
 
@@ -22,4 +23,4 @@ foreach ((int x, int y) in multiplies)
     total += x * y;
 }
 
-Console.WriteLine(total);
+Console.WriteLine($"muls: {muls}");