{REQUEST}Memory address help!

Hi, I'm trying to make a hack for myself to have fun...I've managed to find an address that has as value the address I need to add the nation offset 35C.Any chance some1 knows how to get the value of the address in C#?I've been searching but nothing worked for me...
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U can see in this picture what I'm talking about.

Also, I've found a post with all the offsets but I'm not sure how to get the base address if u know how it works leave me a private message.

Try To read more about these API ...

[DllImport("kernel32.dll")]
private static extern bool ReadProcessMemory();

[DllImport("Kernel32.dll")]
private static extern bool WriteProcessMemory();