#include <iostream>
    #include <typeinfo>
    #include <string>
    #include <cxxabi.h>
    using namespace std;
    class hello{} a;
    class world{} b;
    int main()
    { 
        int st;
        cout<< __cxxabiv1::__cxa_demangle(typeid(::a).name(), nullptr, st^st, &st);
        cout<< string(sizeof(int)/sizeof(int),sizeof(short)<<sizeof(int));
        cout<< __cxxabiv1::__cxa_demangle(typeid(::b).name(), nullptr, st^st, &st) <<endl;
        return st^st;
    }

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