print(2 + 3 * 4)    #* goes first
print((2 + 3) * 4)  #() goes first

print("----------------")
#chained assignment
a = b = c = d = e = 20
print(a,' ', b,' ', c,' ', d,' ', e)

print("----------------")
x=4     #integer
y=10.2  #float
sum=x+y
print(sum) #float

print("----------------")
x='4'   #string
y=10.2  #float
sum=x+y
print(sum) #error