#include "string.h"

int main(int argc, char **argv)
{
    MyString mystr("alpha");
    if (mystr.isSubstring("ph"))
    {
        cout << "true" << endl;
    }
    else
        cout << "false" << endl;

    MyString mystr1 = ", beta";
    MyString mystr2 = ", charlie";
    MyString mystr3 = ", delta";

    mystr.concat(mystr1).concat(mystr2).concat(mystr3);
    cout << mystr << endl;

    MyString mystr4 = "hello";
    mystr4.concat(", world!").concat(" goodbye");
    cout << mystr4 << endl;

    MyString mystr5 = "bro";
    cout << mystr5 << endl;

    return 0;
}