diff --git a/app.py b/app.py
deleted file mode 100644
index cc84de0..0000000
--- a/app.py
+++ /dev/null
@@ -1,20 +0,0 @@
-print('1. solve hypotenuse')
-print('2. solve short side')
-print('3. quit')
-
-while True then
-  choice < - input('choice: ')
-   if choice == 1 then
-     a = input('a: ')
-      b = input('b: ')
-       c = √(a*a+b*b)
-        print('c:', c)
-    elif choice == 2 then
-     b = input('b: ')
-      c = input('c: ')
-       a = √(c*c-b*b)
-        print('a:', a)
-    else then
-     quit()
-    endif
-endwhile