#include<iostream>
#include<string>

using namespace std;

int main()
{
  string s1 = "one*two*three";//Given String 
  string s2 = "*";//delimeter
  string s3 = ",";//string to replace

  cout << "s1 = " << s1 << endl;//Original String before replace

  bool flag = true;
  while(flag)
  {
    size_t found = s1.find(s2);//Stores the size of the string by using find() function
    if(found != string::npos)//its check until the 'n' of the occurence in the given string.
    {
      s1.replace(found, s2.length(), s3);//Replace the string using the replace() function
    }
    else
    {
      flag = false;
    }
  }
 cout << "s1 = " << s1 << endl;//After replacing the string

  return 0;
}