
def duplicate():
    s = set()
    words = "end"
    while words  != "end":
        num = str(input('enter words:'))

        if num == "":
               print(num)
    print(s)


duplicate()
e29a2d1147701dddc47aa863cf81af81a295184e
<mask token>

def duplicate():
    s = set()
    words = 'end'
    while words != 'end':
        num = str(input('enter words:'))
        if num == '':
            print(num)
    print(s)


<mask token>

def duplicate():
    s = set()
    words = 'end'
    while words != 'end':
        num = str(input('enter words:'))
        if num == '':
            print(num)
    print(s)


duplicate()


def duplicate():
    s = set()
    words = "end"
    while words  != "end":
        num = str(input('enter words:'))

        if num == "":
               print(num)
    print(s)


duplicate()