C vector erase function not working properly

Question

Here is the code I want to use to delete any entries with values more than 2 and fewer than 5.

vector<int> myvector{3, 3, 3, 3, 3, 3, 3, 1, 2, 3, 4, 5 , 2, 3, 4, 9};
 vector<int>::iterator it;

 it = myvector.begin();
 for(int i = 0; i < myvector.size(); i++)
 {
   if(myvector[i] > 2 && myvector[i] < 5)
   {
     myvector.erase(it+i);
   }
     
 }
 for(int i = 0; i < myvector.size(); i++)
 {
   cout << ' ' << myvector[i];
     
 }

output: 3 3 3 1 2 4 5 2 4 9

Where is the problem.