private static string EncodeFromFile(Chiper chiper, string fileName, int lines = ALL_LINES)
{
string[] content = File.ReadAllLines(fileName);
if (lines == ALL_LINES)
{
lines = content.Length;
}
StringBuilder builder = new StringBuilder();
for (int i = 0; i < lines; i++)
{
builder.AppendLine(
chiper.Encode(content[i]));
}
string encoded = builder.ToString();
Console.WriteLine(encoded);
Console.ReadLine();
return(encoded);
}