PAT甲级 1027（C++）

#include
#include
using namespace std;
string change(int in) {
	string temp = "";
	char s, g;
	g = (in % 13>=10)? in % 13-10+'A' : in % 13 + '0';
	s = (in / 13>=10)? in / 13 - 10 + 'A' :in / 13 + '0';
	temp += s; temp += g;
	return temp;
}
int main() {
	int in[3];
	string result = "";
	string temp;
	for (int i = 1; i <= 3; i++) {
		cin >> in[i - 1];
		temp = change(in[i - 1]);
		result+=temp;
	}
	result.insert(0, 1, '#');
	cout << result;
	return 0;
}