'''
Given three digits a, b, c, where two of them are equal and one is different, return the value that occurs exactly once.

Example 1
Input:
a = 1; b = 2; c = 2
Output:
1
Example 2
Input:
a = 4; b = 3; c = 4
Output:
3
'''

class Solution(object):
    def solve(self,a:int, b:int, c:int) -> int:
        print(f"a: {a}, b: {b}, c: {c}")
        if a != b and a != c:
            return a
        elif b != a and b != c:
            return b
        else:
            return c

s = Solution()
print(s.solve(1, 2, 2))
print(s.solve(4, 3, 4))