# include & ltbits/stdc++。 h & gt
Use namespace std
int main()
{
int n；
CIN & gt； & gtn；
for(int I = 0； I < = n; I++)// Enumerate the year when Xiao Ming was born.
{
int j = I；
int sum = 0；
And (j! =0)
sum+=j% 10，j/= 10； //The sum of all the figures of Xiaoming's birth year.
If(sum==(n-i))// Xiaoming's age
{
Cout & lt& lt me;
Returns 0;
}
}
Cout & lt& lt "no"; //Otherwise, output No.
Returns 0;
}