What is the output of this program?

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#include
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#include
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using namespace std;
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class Myshape
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{
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public:
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virtual void myvirtualfunc() const {}
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};
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class mytriangle: public Myshape
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{
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public:
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virtual void myvirtualfunc() const
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{
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};
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};
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int main()
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{
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Myshape Myshape_instance;
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Myshape &ref_Myshape = Myshape_instance;
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try
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{
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mytriangle &ref_mytriangle = dynamic_cast(ref_Myshape);
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}
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catch (bad_cast)
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{
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cout << "Can't do the dynamic_cast lor!!!" << endl;
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cout << "Caught: bad_cast exception. Myshape is not mytriangle.n";
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}
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return 0;
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}