2. What is the output of the following CH code, given the input data 5, 6,3 and 1? #include using namespace std; struct PersonNode { int SocSecNum; PersonNode* Next; BE int main() int SSNumber: PersonNode* ptr: PersonNode* head = NULL; ptr = cout > SSNumber: while (cin) { new PersonNode; ptr->SocSecNum = SSNumber; ptr->Next = head; head = ptr: cout > SSNumber: ptr head; cout SocSecNum: ptr = ptr->Next; 2 cout