Exercise3.2

input = -1
if input == 0:
    print(input, "This is zero number")
if input > 0:
    print(input, "This is positive number")
else:
    print(input, "This is negative number")
    
#Nếu số < 0: this is negative number
#Nếu số = 0: this is zero
#Nếu số > 0: this is positive number