#include <iostream>

using namespace std;

int main(int argc, char *argv[])
{
   
double z;
double a;
double q;
double x;
cin>> z;
cin>> a;
cin>> q;
cin>> x;
cout<<z+a<<"\n";
cout<<q+x<<"\n";
   
   

return 0;
}

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測試:   OK

解題:不OK

應該用迴圈喔   你這樣只能測兩次