Minimum Common Value.py

class Solution:
    def getCommon(self, nums1: List[int], nums2: List[int]) -> int:
        
       nums1 = set(nums1)

       nums2 = set(nums2)

       res = nums1.intersection(nums2)

    #    print(res)
       
       return min(res) if len(res) >0 else -1