#include using namespace std; int main() { for (int a = 123; 3 * a <= 987; a++) { int b = a * 2, c = 3 * a; ostringstream oss; oss << a << b << c; string s = oss.str(); sort(s.begin(), s.end()); if (s == "123456789") cout << a << b << c << endl; } return 0; }