1010

 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 }