a = 60
b = 40
sum = a+b
sub = a-b
mult = a*b
div = a/b
rem = a%b

print("simple calculator")
print("sum of a and b",sum)
print("subtraction of a and b",sub)
print("multiplication of a and b",mult)
print("division of a and b",div)
print("remainder of a and b",rem)