class Solution:
def kMirror(self, k: int, n: int) -> int:
ans = 0
A = ['0']
def nextKMirror(A: list[str]) -> list[str]:
for i in range(len(A) // 2, len(A)):
nextNum = int(A[i]) + 1
if nextNum < k:
A[i] = str(nextNum)
A[~i] = str(nextNum)
for j in range(len(A) // 2, i):
A[j] = '0'
A[~j] = '0'
return A
return ['1'] + ['0'] * (len(A) - 1) + ['1']
for _ in range(n):
while True:
A = nextKMirror(A)
num = int(''.join(A), k)
if str(num)[::-1] == str(num):
break
ans += num
return ans
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