Compute A \times B, truncate its fractional part, and print the result as an integer.
a,b = map(str, input().split())
a = int(a)
b = float(b)
c = (a*b)//1
print(c)
import decimal
a,b = map(str, input().split())
a = int(a)
b = decimal.Decimal(b)
c = decimal.Decimal(a*b)
d = decimal.Decimal(c//1)
print(d)