a,b=input().split()
b=int(b)
cnt=0
a1,a2=a.split(".")
a1=int(a1)
for i in a2:
a1 *=10
a1 +=int(i)
cnt+=1
num = str(a1**b)
if b*cnt-len(num)+1>0:
num = "0"*(b*cnt-len(num)+1) +num
for i in range(len(num)):
if i == len(num)-cnt*b:
print(end=".")
print(num[i],end="")