text: from flask import Flask, jsonify, render_template, request, redirect, session, url_for
  import requests,os,json
  from app import app, main_engine
  
  @app.route('/')
  def index():
      return render_template("index.html", result="", lower="", upper="")
  
  @app.route('/validate_input', methods = ['POST'])
  def validate_input():
      result = ""
      lower_bound = request.form['lower_bound']
      upper_bound = request.form['upper_bound']   
      if main_engine.validate_inputs(lower_bound, upper_bound):
          result = main_engine.find_random_number(lower_bound, upper_bound)
      else:
          result = "Please input a smaller number to a larger number"
      return render_template("index.html", result = result, lower=lower_bound, upper=upper_bound)
  