func_code: def merge_lists(l1, l2):
      import sys
      merged_list = []
      i = 0
      while i < len(l1):
          merged_list.append(l1[i])
          i = i + 2
      i = 0
      while i < len(l2):
          merged_list.append(l2[i])
          i += 2
      return merged_list