Decryption

using system;
namespace decryption
{
class key
{
Public static void Main(string[] args)
{
int text = System.IO.File.ReadAllText(@ "location of file");

int decrypt1 = text - 23;
int decrypt2 = decrypt1 + 19;
int decrypt3 = decrypt2 + 8;

int decrypted = (string)decrypt3;

string text = decrypted;
System.IO.File.WriteAllText(@ "location to save fileName.txt",text);
}
}
}