Update app.py

app.py

@@ -1,4 +1,4 @@
 import streamlit as st
-@st.cache_data
-x = st.slider('Select a value')
-st.write(x, 'squared is', x * x)
+
+age = st.slider('How old are you?', 0, 130, 25)
+st.write("I'm ", age, 'years old')