void 显示所有个位十位百位之和等于指定的数(int a, int aa, int s)
{//缘由https://ask.youkuaiyun.com/questions/7441324?spm=1005.2025.3001.5141
int aaa = a, aaaa = 0;
while (a <= aa)
if (aaa)aaaa += aaa % 10, aaa /= 10;
else
if (aaaa == s)std::cout << a << std::ends, aaa = ++a, aaaa = 0;
else aaa = ++a, aaaa = 0;
}
int a = 0, aa = 0, s = 0; std::cin >> a >> aa >> s;
显示所有个位十位百位之和等于指定的数(a, aa, s);