leetcode superpow

public class  {
  
   * Your task is to calculate ab mod 1337 where a is a positive integer and b is an extremely large positive integer
   * given in the form of an array.
   *
   * Example 1:
   *
   * Input: a = 2, b = [3]
   * Output: 8
   * Example 2:
   *
   * Input: a = 2, b = [1,0]
   * Output: 1024
   */
}