#include<iostream.h>
#include<string.h>
class jia
{
public:
   jia(char stl[5]);
   jia operator+(jia );
   void show();
 private:
    char str[5];
};
jia::jia(char stl[5])
{
    strcpy(str,stl);
}
jia jia::operator+(jia)
{
    jia A,B;
    return strcat(A.str,B.str);

}
void jia::show()
{
    cout<<str<<endl;
}
void main()
{
    jia A="abcd";
    jia B="efgh";
    A.show();
    B.show();
    (A+B).show();
}