1 #include<iostream>
2 #include<vector>
3
4 using namespace std;
5
6 int main()
7 {
8 vector<int> v;
9 vector<int> result;
10 int n;
11 int a, b;
12 while (cin >> n)
13 v.push_back(n);
14 for (auto iter = v.begin(); iter != v.end(); iter += 2)
15 {
16 a = *iter;
17 b = *(iter + 1);
18 if (a == 0 && b == 0)
19 {
20 result.push_back(0);
21 result.push_back(0);
22 }
23 if (a*b != 0)
24 {
25 result.push_back(a*b);
26 result.push_back(b - 1);
27 }
28 }
29 bool flag = 0;
30 if (!result.empty())
31 for (auto c : result)
32 {
33 cout << (flag == 0 ? "" : " ") << c;
34 flag = 1;
35 }
36 else
37 cout << 0 << " " << 0;
38
39 return 0;
40 }
