diff --git a/u8/program.py b/u8/program.py
index 640656d..b5e019a 100644
--- a/u8/program.py
+++ b/u8/program.py
@@ -5,6 +5,21 @@ class Node:
         self.no = None
 
 
+def create_tree(lines, index, counts):
+    text = lines[index[0]]
+    index[0] += 1
+    node = Node(text)
+
+    if text.endswith("?"):
+        counts[0] += 1
+        node.yes = create_tree(lines, index, counts)
+        node.no = create_tree(lines, index, counts)
+    else:
+        counts[1] += 1
+
+    return node
+
+
 
 
 def main():
@@ -23,7 +38,6 @@ def main():
 
     counts = [0, 0]
     index = [0]
-
     root = create_tree(lines, index, counts)
 
 
@@ -52,6 +66,5 @@ def main():
     print("Koniec")
 
 
-
 if __name__ == "__main__":
     main()