#include <iostream>
#include <string>

using namespace std;





string myappend(string c,int a,char b)
{
string characters;
int n=0;
while(n<=a)
{
    characters[n]=b;
    n++;
}
c=c+characters;

return c;
}





void main()
{
string one="My string";
int n=4;
char ch='w';

one=myappend(one,n,ch);
cout<<one;

}