Calculator for addition, subtraction, multiplication and division

a = 50

b = 3 

add = a+b

sub = a-b

mul = a*b

div = a/b

print ("the value of", a, "+", b,"is :",  add)

print ("the value of", a, "-", b,"is :",  a-b)

print ("the value of", a, "*", b,"is :",  mul)

print ("the value of", a, "/", b,"is :",  div)