#include <stdio.h>
 
unsigned long beki[30] = {
	1, 2, 4, 8, 16, 32, 64, 128, 256,
	512, 1024, 2048, 4096, 8192, 16384,
	32768, 65536, 131072, 262144, 524288,
	1048576, 2097152, 4194304, 8388608, 16777216,
	33554432, 67108864, 134217728, 268435456, 536870912
};
 
int main(void) {
	unsigned long l, n;
	fscanf(stdin, "%ld", &l);
	fscanf(stdin, "%ld", &n);
	printf("%ld\n", beki[l - 3] * n);
	return 0;
}