import os

from flask import Flask
app=Flask(__name__)

@app.route('/')
def hello_word():
    return 'Hello Word!'
    
    
if __name__=='__main__':
    host=os.getenv('IP', '0.0.0.0')
    port= int(os.getenv('PORT', 5000))
    app.run(host=host, port=port)