Write a C++ program to create a new string from a given string. If the first or first two characters is 'a', return the string without those 'a' characters otherwise return the original given string

#include <iostream>
using namespace std;

string test(string s1)
          {
            if (s1.length() == 1 && s1.substr(0, 1) == "a")
            {
                s1 = s1.erase(0, 1);
            }

            if (s1.length() > 1)
            {
                if (s1.substr(1, 1) == "a")
                {
                    s1 = s1.erase(1, 1);
                }

                if (s1.substr(0, 1) == "a")
                {
                    s1 = s1.erase(0, 1);
                }
            }

            return s1;
        }         
        
int main() 
 {
  cout << test("abcab") << endl;  
  cout << test("python") << endl; 
  cout << test("aacda") << endl;  
  cout << test("jython") << endl;  
  return 0;    
}