save project

b.py

+def b(n):
+    if n <= 2:
+        return 1
+    else:
+        value = b(n-1) + b(n-2)
+        return value
+
+
+def c():
+    x = 1
+    while True:
+        if b(x) > 20:
+            return x
+        else:
+            x += 1
+
+
+print(c())
\ No newline at end of file