Check out example codes for "c# substring reverse". It will help you in understanding the concepts better.

Code Example 1

public static string ToReverseString(this string value)
{
  return string.Join("", value.Reverse());
}

public static string SubstringReverse(this string value, int indexFromEnd, int length)
{
  return value.ToReverseString().Substring(indexFromEnd, length).ToReverseString();
}

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