int main()
{
MyString s1, s2("String2"), s3="String3";
MyString s4(s3), s5(10);
s2.print();
s4.print();
s4.replace('3','4');
s4.print();
s5[0]='H';
s5[1]='e';
s5[2]='l';
s5[3]='l';
s5[4]='o';
s5.print();
s1 = s4 + s5;
s1.print();
s4.print();
s5.print();
s4+="!";
s4.print();
int pos = s3.find("ring");
if(pos != -1)
{
printf("Substring 'str' in position %i\n", pos);
}
s3.replace("ring","R");
s3.print();
return 0;
}