Can a class that implments an Interface declare a member that differs from the Interface definition?

I thought the answer to this question was no

public interface Iface
{
   void func1(string name);
   void func2(string name, string surname);
}

public class MyClass : IFace
{
  public void func1(string name, int age);
  public void func2(string name, string surname, string address);
}

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Is the above leagal or does the class have to declare members that exactly match the Interface definition?