Question: What is the output? #include using namespace std; class Number { public: int x; } ; int main ( ) { Number a; int sum

What is the output?
#include using namespace std; class Number { public: int x; }; int main(){ Number a; int sum =0; a.x =10; Number b = a; sum = a.x + b.x; cout << sum; return 0; }

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