P,C=map(int, input().split())
p=[2,3,5,7,11,13]
c=[4,6,8,9,10,12]
e=0
if P>0 and C>0:
    e = (sum(p)/6)**P * (sum(c)/6)**C
elif P>0:
    e = (sum(p)/6)**P
elif C>0:
    e = (sum(c)/6)**C
print(e)