input: from typing import List
  
  def min_combined_bitwise_value(nums: List[int], k: int) -> int:
      """
      You have an integer array nums indexed from 0, and an integer k is provided.
      
      In a single operation, choose an index i such that 0 <= i < len(nums) - 1 and replace nums[i] and nums[i + 1] with nums[i] & nums[i + 1], where & denotes the bitwise AND operation.
      
      Find the smallest possible bitwise OR of the elements left in nums after performing at most k operations.
      
      Examples:
      >>> nums = [3,5,3,2,7], k = 2
      3
      >>> nums = [7,3,15,14,2,8], k = 4
      2
      >>> nums = [10,7,10,3,9,14,9,4], k = 1
      15
      
      Constraints:
      1 <= len(nums) <= 10^5
      0 <= nums[i] < 2^30
      0 <= k < len(nums)
      """
output:     for _ in range(k):
          min_and_val = float('inf')
          min_index = -1
          for i in range(len(nums) - 1):
              current_and = nums[i] & nums[i + 1]
              if current_and < min_and_val:
                  min_and_val = current_and
                  min_index = i
          
          if min_index != -1:
              nums[min_index] = min_and_val
              nums.pop(min_index + 1)
      
      result = nums[0]
      for num in nums[1:]:
          result |= num
      
      return result