import random
print("Hi,Please enter your name:",end="")
name=input()
print("\nWelcome",name)
print("\nenter your mail:",end="")
mail=input()
oin=random.randint(100,200)
print("\nMail: Your otp is",oin,"\nwe have sent an otp to your email:",end="")
while (True):
    otp=int(input())
    if otp==oin:
        print("you have logged in :)")
        break
    else:
        print("please enter a valid one")
        continue