What is the output of the following program?

#include

using namespace std;

int mystery(int x, int y, int z);

int main()

{

cout << mystery(7, 8, 3) << endl;

cout << mystery(10, 5, 30) << endl;

cout << mystery(9, 12, 11) << endl;

cout << mystery(5,

5, 8) << endl;

cout << mystery(10, 10, 10) << endl;

return 0;

}

int mystery(int x, int y, int z)

{

if (x <= y && x <= z)

return (y + z - x);

else if (y <= z && y <= x)

return (z + x - y);

else

return

(x + y - z);

}

C++