What does the parts of this code do?

namespace CardGame.Cards { public abstract class Card { public int GetValue() { return Number * Suit; } public override string ToString() { return SuitName + " " + Number + " (" + GetValue() + ")"; } public int Number { get; protected set; } public int Suit { get; protected set; } public string SuitName { get; protected set; } } }

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The "public override string ToString()" part.

and the

"public int Number { get; protected set; }" 

part.

Thank you!