220613

# a, b = input().split()
# a = int(a)
# b = int(b)
# print(a<b)
#
# a, b = input().split()
# a = int(a)
# b = int(b)
# # print(a==b)
#
# a, b = input().split()
# a = int(a)
# b = int(b)
# print(a<=b)
#
# a, b = input().split()
# a = int(a)
# b = int(b)
# print(a!=b)
#
# n = int(input())
# print(bool(n))
#
# a = bool(int(input()))
# print(not a)
#
# a, b = input().split()
# print(bool(int(a)) and bool(int(b)))
#
# a, b = input().split()
# print(bool(int(a)) or bool(int(b)))
# a, b = input().split()
# # c = bool(int(a))
# # d = bool(int(b))
# # print((c and (not d)) or ((not c) and d))
#
# a, b = input().split()
# c = bool(int(a))
# d = bool(int(b))
# print(((not c) and (not d)) or (c and d))
#
# a, b = input().split()
# c = bool(int(a))
# d = bool(int(b))
# print(((not c) and (not d)) and (not (c or d)))
#
# a, b = input().split('-')
# print(a,b,sep='')
#
# s = input()
# print(s[0])
# print(s[1])
# print(s[2])
# print(s[3])
# print(s[4])
#
# s = input()
# print(s[0:2],s[2:4],s[4:6])
#
# a, b, c = input().split(':')
# print(b[0:2])
#
# w1, w2 = input().split()
# s = w1 + w2
# print(s)
#
# a, b = input().split()
# c= int(a)+int(b)
# print(c)
#
# a = input()
# b = input()
# c = float(a) + float(b)
# print(c)
#
# a = input()
# n = int(a)
# print('%x'%n)
#
# a = input()
# n = int(a)
# print('%X'%n)
#
# a = input()
# n = int(a,16)
# print('%o'%n)
#
# n = ord(input())
# print(n)
#
# c = int(input())
# print(chr(c))
#
# n = input()
# n = ord(n)
# print(chr(n+1))
#
# a, b = input().split()
# a = float(a)
# b = float(b)
# c = a*b
# print(c)
#
# n = input()
# s = input()
# print(int(n)*s)
#
# a, b = input().split()
# a = float(a)
# b = float(b)
# c = a**b
# print(c)
#
# a, b = input().split()
# a = float(a)
# b = float(b)
# c = a/b
# print(format(c,".3f"))
#
# a, b = input().split()
# a = int(a)
# b = int(b)
# print(a%b)
#
# a, b, c = input().split()
# a = int(a)
# b = int(b)
# c = int(c)
# d = a+b+c
# e = d/3
# print(d,format(e,".2f"))
#
# a = input()
# a = int(a)
# print(a<<1)

a, b = input().split()
a = int(a)
b = int(b)
print(a<<b)