long sumXor(long n) {
    long count = 0;
    long binary = n;
    while (binary > 0) {
        count += binary & 1 ? 0 : 1;
        binary >>= 1;
    }
    return 1L << count;
}

int main() {
    long n;
    scanf("%ld", &n);

    printf("%ld\n", sumXor(n));
		
		
#Pratham Gupta
		
		
		
		

    return 0;
}