class Solution(object):
    def twoSum(self, nums, target):
        """
        :type nums: List[int]
        :type target: int
        :rtype: List[int]
        """
        
        for i in range(0, len(nums)):
            for j in range(1, len(nums)):
                if nums[i] + nums[j] == target:
                    print([i,j])

solution = Solution()
solution.twoSum([2,7,11,15], 9)