diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index c2d2392..1b79ecf 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -5,13 +5,8 @@
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@@ -45,7 +40,29 @@
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@@ -92,6 +109,7 @@
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\ No newline at end of file
diff --git a/ext_01/control.py b/ext_01/control.py
new file mode 100644
index 0000000..b3e3036
--- /dev/null
+++ b/ext_01/control.py
@@ -0,0 +1,50 @@
+import itertools
+
+length = 5
+digits = set(range(10))
+numbers = set(itertools.product(digits, repeat=length))
+
+print(f"|Z| = {len(digits)}")
+print(f"|N| = {len(numbers)}")
+
+counter = 0
+for n in numbers:
+ if len(set(n)) == 1:
+ counter += 1
+print(f"|A| = {counter}")
+# Ausgabe: |A| = 10
+
+counter = 0
+for n in numbers:
+ if sum(n.count(x) == 4 for x in set(n)) > 0:
+ counter += 1
+print(f"|B| = {counter}")
+# Ausgabe: |B| = 450
+
+counter = 0
+for n in numbers:
+ if len(set(n)) == 3 and any(n.count(x) == 3 for x in set(n)):
+ counter += 1
+print(f"|C| = {counter}")
+# Ausgabe: |C| = 7200
+
+counter = 0
+for n in numbers:
+ if len(set(n)) == 2 and any(n.count(x) == 3 for x in set(n)):
+ counter += 1
+print(f"|D| = {counter}")
+# Ausgabe: |D| = 900
+
+counter = 0
+for n in numbers:
+ if len(set(n)) == 3 and any(x != y and n.count(y) == 2 and n.count(x) == 2 for x in set(n) for y in set(n)):
+ counter += 1
+print(f"|E| = {counter}")
+# Ausgabe: |E| = 10800
+
+counter = 0
+for n in numbers:
+ if len(set(n)) == 5:
+ counter += 1
+print(f"|F| = {counter}")
+# Ausgabe: |F| = 30240