n = input()
res = itertools.combinations(n, 3)
for i in res:
    print(i)

4c4ab2a60a419eb2a7d12c9eee8fe5b2852f204d
<mask token>

<mask token>
for i in res:
    print(i)

n = input()
res = itertools.combinations(n, 3)
for i in res:
    print(i)
