while True:
    name = input("enter ur name: ")
    if not name == "":
        if  not int(name):
            break
        else:
            print("wpisz swoje Prawdziwe imie")
            print()
    else:
        print("wpisz swoje imie")
        print()

    #print("please enter your real name.")
    #print()










#phone_number = "123=1234=1234"
#for i in phone_number:
#    if i == "-":
 #       continue
  #  print(i, end="")
#for i in range (0,20):
 #   if i == 13:
  #      pass
   # else:
    #    print(i+1,end=" ")