diff --git a/week12/ex5.py b/week12/ex5.py
new file mode 100644
index 0000000..00e2cf8
--- /dev/null
+++ b/week12/ex5.py
@@ -0,0 +1,22 @@
+from continueanyway import ca
+
+def handleKBI(lmbd):
+    def runlambda(*args,**kwargs):
+        try:
+            return lmbd(*args,**kwargs)
+        except KeyboardInterrupt:
+            print("\nKeyboardInterrupt detected!")
+    return runlambda
+
+@handleKBI
+def inputIE(*args,**kwargs):
+    return input(*args,**kwargs)
+
+def main():
+    l1 = inputIE("pls input sth")
+    print(l1)
+    
+    return 0
+        
+if __name__ == '__main__':
+    main()
diff --git a/week12/ex6.py b/week12/ex6.py
new file mode 100644
index 0000000..902d0bf
--- /dev/null
+++ b/week12/ex6.py
@@ -0,0 +1,21 @@
+from continueanyway import ca
+
+def handleArithmeticError(lmbd):
+    def runlambda(*args,**kwargs):
+        try:
+            return lmbd(*args,**kwargs)
+        except ArithmeticError:
+            print("ArithmeticError detected!")
+    return runlambda
+
+@handleArithmeticError
+def div(a,b):
+    return a/b
+
+def main():
+    print(div(1,0))
+    
+    return 0
+        
+if __name__ == '__main__':
+    main()
diff --git a/week12/ex7.py b/week12/ex7.py
new file mode 100644
index 0000000..ba59257
--- /dev/null
+++ b/week12/ex7.py
@@ -0,0 +1,34 @@
+from continueanyway import ca
+
+def handleAttrError(lmbd):
+    def NoneR(*args,**kwargs):
+        return None
+    def runlambda(*args,**kwargs):
+        try:
+            return lmbd(*args,**kwargs)
+        except AttributeError:
+            print("AttributeError detected!")
+            return NoneR
+    return runlambda
+
+class listIE(list):
+    def __init__(self, iterable):
+        super().__init__(iterable)
+    
+    @handleAttrError
+    def __getattribute__(self, name):
+        return super().__getattribute__(name)
+    
+    @handleAttrError
+    def __call__(self, *args, **kwds):
+        return super().__call__(*args, **kwds)
+
+def main():
+    l1 = listIE([1,2,3])
+    print(l1.popp(1))
+    print(l1.pop(1))
+    
+    return 0
+        
+if __name__ == '__main__':
+    main()