#!/usr/bin/env python





def main():

    S = eval(input())

    print((S[0:3]))





if __name__ == '__main__':

    main()

#!/usr/bin/env python

"""AtCoder Grand Contest 044: A - Nickname

https://atcoder.jp/contests/agc044/tasks/agc044_a

"""





def main():

    S = eval(input())

    print((S[0:3]))





if __name__ == '__main__':

    main()

#!/usr/bin/env python
def main():
    S = eval(input())
    print((S[0:3]))


if __name__ == "__main__":
    main()

#!/usr/bin/env python
"""AtCoder Grand Contest 044: A - Nickname
https://atcoder.jp/contests/agc044/tasks/agc044_a
"""


def main():
    S = eval(input())
    print((S[0:3]))


if __name__ == "__main__":
    main()

+"""AtCoder Grand Contest 044: A - Nickname +https://atcoder.jp/contests/agc044/tasks/agc044_a +""" + +