C++题解:

#include<bits/stdc++.h>
using namespace std;
int main(){
    int a, b;
    cin >> a >> b;
    cout << (a + b) * 2 << endl; //注意endl
    cout << a * b << endl; //这里可以不用endl了
    return 0; //完美结束
}

Python题解:

a, b = map(int, input().split())
print((a + b) * 2)
print(a * b)