task3

a=float(input("Enter first number:"))
b=float(input("Enter second number:"))
c=input("Enter operation (+, -, *, /):")
if c=="+":
    d=a+b
    print("Result:", d)
elif c=="-":
    d=a-b
    print("Result:", d)
elif c=="*":
    d=a*b
    print("Result:", d)
elif c=="/":
    if b==0:
        print("division by zero!")
    else:
        d=a/b
        print("Result:", d)
else:
    print("you entered unsupported operation")