diff --git a/TDD-pure-function/src/main/java/de/edu/hsfulda/ciip/tdd/BownlingCalculator.java b/TDD-pure-function/src/main/java/de/edu/hsfulda/ciip/tdd/BownlingCalculator.java
index 8908da4..c732390 100644
--- a/TDD-pure-function/src/main/java/de/edu/hsfulda/ciip/tdd/BownlingCalculator.java
+++ b/TDD-pure-function/src/main/java/de/edu/hsfulda/ciip/tdd/BownlingCalculator.java
@@ -6,10 +6,14 @@ import java.util.regex.Pattern;
 public class BownlingCalculator {
 
 	public int evaluate(String listOfThrows) {
-		int sum =0;
+		int sum = 0;
 		Matcher singleDigit = Pattern.compile("\\d").matcher(listOfThrows);
 		while (singleDigit.find()) {
-			sum+=Integer.parseInt(singleDigit.group());
+			sum += Integer.parseInt(singleDigit.group());
+		}
+		singleDigit = Pattern.compile("(\\d)/ (\\d)").matcher(listOfThrows);
+		while (singleDigit.find()) {
+			sum += 10 - Integer.parseInt(singleDigit.group(1)) + Integer.parseInt(singleDigit.group(2));
 		}
 		return sum;
 	}