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monhime/ABC178C.gyp

Created September 13, 2020 23:01
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ABC178 C問題 解答
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ABC178C.gyp
import sys
def input(): return sys.stdin.readline().rstrip()
def main():
n = int(input())
mod = 10**9+7
print((pow(10,n,mod)-2*pow(9,n,mod)+pow(8,n,mod))%mod)
if __name__=='__main__':
main()
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