Got asked below question, only difference was the input was provided as a string. I hadn't practiced it before but wanted to give back to the community. All the best!

https://leetcode.com/problems/next-greater-element-iii/description/

Working solution:
```
class Solution:
    def nextGreaterElement(self, n: int) -> int:
        s = [x for x in str(n)]
        n_list = [int(i) for i in s]

        end = len(n_list)-2
        while end >= 0 and n_list[end] >= n_list[end + 1]:
            end -= 1
        
        if end < 0:
            return -1
        
        j = len(n_list) - 1
        while n_list[end] >= n_list[j]:
            j -= 1

        # swap 
        n_list[end], n_list[j] = n_list[j], n_list[end]
        # reverse
        n_list[end+1:] = n_list[end+1:][::-1]
        s = [str(x) for x in n_list]
        next_greater = int("".join(s))
        return next_greater if next_greater <= 2**31 - 1 else -1
```

Got asked below question, only difference was the input was provided as a string. I hadn't practiced it before but wanted to give back to the community. All the best!https://leetcode.com/problems/next-greater-element-iii/description/Working solution: