int main () {
FILE *fin = fopen ("palsquare.in", "r");
FILE *fout = fopen ("palsquare.out", "w");
int B;
fscanf(fin, "%d", &B);
int N;
int square;
for (N = 1; N <= 300; N++) {
square = N * N;
char* square_B = ten_to_B(square, B);
if (is_palidrome(square_B)) {
char* N_B = ten_to_B(N, B);
fprintf(fout, "%s %s\n", N_B, square_B);
free(N_B);
free(square_B);
}
}
fclose(fin);
fclose(fout);
return 0;
}
int main(){
int result = 0;
for(int i = 100; i < 1000; ++i)
for(int j = 100; j < 1000; ++j){
int temp = i * j;
if(is_palidrome(temp))
if(result < temp)
result = temp;
}
std::cout << result << std::endl;
}