#start, stop, step
# от 0 до 99, 100 не входит
#for i in range(100, 0 - 1, -1):
#    print(i)

#numb = 0
#while numb < 5:
#    print(numb)
#    numb += 1

#def login(i):
#    login = input("Enter login: ")
#    password = input("Enter pass: ")

#while login != "user" and password != "1234":
#    print ("Err")
#    login()
#print("you welc")