Create app.py

app.py

@@ -0,0 +1,20 @@
+import streamlit as st
+
+# App title
+st.title("Simple Calculator (+, -)")
+
+# Input numbers
+num1 = st.number_input("Enter first number:", format="%.2f")
+num2 = st.number_input("Enter second number:", format="%.2f")
+
+# Operation selection
+operation = st.radio("Choose operation:", ("Addition (+)", "Subtraction (-)"))
+
+# Perform calculation
+if st.button("Calculate"):
+    if operation == "Addition (+)":
+        result = num1 + num2
+        st.success(f"Result: {num1} + {num2} = {result}")
+    elif operation == "Subtraction (-)":
+        result = num1 - num2
+        st.success(f"Result: {num1} - {num2} = {result}")