Changing output

app.py

@@ -23,9 +23,9 @@ try:
 
 # Print the results
     st.write("Input date:", date.strftime("%Y-%m-%d"))
-    st.write("Next multiple of 500:", delta_days, "days on", next_multiple.strftime("%Y-%m-%d"),"\n")
+    st.write("Next multiple of 500:", str(delta_days), "days on", next_multiple.strftime("%Y-%m-%d"),"\n")
     for i, date_after in enumerate(dates_after):
         st.write(f"{day_list[i]} days after input date:", date_after.strftime("%Y-%m-%d"))
 
 except ValueError:
-    st.write("Date should be in format yyyy-mm-dd")
+    st.write("Write date in format yyyy-mm-dd")