Rock paper scissor.py

import random 
print(" WELCOME TO THE WORLD OF ROCK,PAPER AND SCISSORS!!!","\n","ENTER 'r' FOR ROCK","\n","ENTER 'p' FOR PAPER","\n","ENTER 's' FOR SCISSORS","\n" ,"ENTER 'Z' TO STOP")
print("\n"," LETS PLAY!!!")
print("")
while True:
    random_choice=random.choice(["R","P","S"])
    a=input("Enter Your Weapon:").upper()
    if a==random_choice:
        print("IT'S A DRAW")
    elif a=="R":
        if random_choice=="S":
            print(" CONGRATS...YOU WON!!!")
        else:
            print("YOU LOST","TRY AGAIN")
    elif a=="P":
        if random_choice=="R":
            print("CONGRATS...YOU WON !!!")
        else:
            print("YOU LOST","TRY AGAIN")
    elif a=="S":
        if random_choice=="P":
            print("CONGRATS...YOU WON!!!")
        else:
            print("YOU LOST","TRY AGAIN")
    elif a=="":
        print("ENTER A WEAPON","\n","ENTER 'r' FOR ROCK","\n","ENTER 'p' FOR PAPER","\n","ENTER 's' FOR SCISSORS","\n" ,"ENTER 'Z' TO STOP")
    elif a=="Z":
        print("")
        print("**GAME OVER**")
        break