diff --git a/01-data-model/frenchdeck.py b/01-data-model/frenchdeck.py
index 47a0d05..600647f 100644
--- a/01-data-model/frenchdeck.py
+++ b/01-data-model/frenchdeck.py
@@ -15,3 +15,31 @@ def __len__(self):
 
     def __getitem__(self, position):
         return self._cards[position]
+
+deck = FrenchDeck()
+
+print(deck[-1])
+
+# from random import choice
+
+# print(choice(deck))
+
+# print(len(deck))
+
+for card in reversed(deck): 
+    print(card)
+
+suit_values = dict(spades=3, hearts=2, diamonds=1, clubs=0)
+
+def spades_high(card):
+    rank_value = FrenchDeck.ranks.index(card.rank)
+    return rank_value * len(suit_values) + suit_values[card.suit]
+
+for card in sorted(deck, key = spades_high):
+    print(card)
+
+# cardlist = [card for card in deck if card.rank == '3']
+# spades_high(cardlist)
+
+card1 = Card('4', 'hearts')
+print(spades_high(card1))
\ No newline at end of file
diff --git a/01-data-model/mytests.py b/01-data-model/mytests.py
new file mode 100644
index 0000000..acd8c1e
--- /dev/null
+++ b/01-data-model/mytests.py
@@ -0,0 +1,11 @@
+def lenbyo(x):
+    if x.count("o") == 0:
+        ln = 0
+    else: 
+        ln = len(x)/x.count("o")
+    return ln
+
+
+print(list(map(lenbyo, ["cos","wodnik","kolorowanka", "kiermasz"])))
+
+print(list(map(sum,zip([1,2,3],[5,3,2]))))
\ No newline at end of file
diff --git a/01-data-model/vector2d.py b/01-data-model/vector2d.py
index 178f498..3a61755 100644
--- a/01-data-model/vector2d.py
+++ b/01-data-model/vector2d.py
@@ -7,7 +7,8 @@ def __init__(self, x=0, y=0):
         self.y = y
 
     def __repr__(self):
-        return 'Vector(%r, %r)' % (self.x, self.y)
+        #return 'Vector(%r, %r)' % (self.x, self.y)
+        return 'Vector({}, {})'.format(self.x,self.y)
 
     def __abs__(self):
         return hypot(self.x, self.y)
@@ -16,9 +17,53 @@ def __bool__(self):
         return bool(abs(self))
 
     def __add__(self, other):
-        x = self.x + other.x
-        y = self.y + other.y
+        x = self.x - other.x
+        y = self.y - other.y
         return Vector(x, y)
 
-    def __mul__(self, scalar):
-        return Vector(self.x * scalar, self.y * scalar)
+    def __mul__(self, other):
+        return Vector(self.x * other.x, self.y * other.y)
+
+
+def mypow(x,y):
+    n = 1
+    for i in range(y): 
+        n=x*n
+    return n 
+ 
+print(mypow(2,4))
+
+v1 = Vector(1,5)
+v2 = Vector(3,8)
+v3 = Vector(2,2)
+
+
+print(v1 * v2 * v3)
+print(v1 + v2)
+print(v1)
+
+s = 'rabarbar'
+print(s.count('r'))
+
+x = 1
+while x <= 1000:
+    x *= 2
+    print(x)
+
+x = "okok"
+y = "okok"
+
+if x is y:
+    print("ok")
+
+def lenbyo(x):
+    if x.count("o") == 0:
+        ln = 0
+    else: 
+        ln = len(x)/x.count("o")
+    return ln
+
+
+print(list(map(lenbyo, ["cos","wodnik","kolorowanka", "kiermasz"])))
+
+print(list(map(sum,zip([1,2,3],[5,3,2]))))
\ No newline at end of file