l, m = map(float, input().split())
a = l * m
print('%.5f' % a)

d08f2144d8ede40cef2392e823d127dd7b8395c7
<mask token>

<mask token>
print('%.5f' % a)

l, m = map(float, input().split())
a = l * m
print('%.5f' % a)
