-a=_a=1Untitled

x=1
y=1.0
z='1'


print(type(x),type(y),type(z))

print(0.5-0.4)
print(0.5-0.2)
print(0.1+0.1+0.1)
u=0.1
print(type(u))
from decimal import Decimal #(decimal-library, Decimal-class)
x=Decimal('0.1')
print(x)
print(type(x))