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[AtCoder]ABC-333|C - Repunit Trio
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提出結果
def getInt():
return int(input())
def main():
n = getInt()
mx = 13
a = set()
for i in range(1, mx):
si = int('1' * i)
for j in range(1, mx):
sj = int('1' * j)
for k in range(1, mx):
sk = int('1' * k)
a.add(si + sj + sk)
a = list(a)
a.sort()
print(a[n - 1])
if __name__ == "__main__":
main()
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