opration = ["+","-","*","/"]



print(opration[0:])
opration=input("what opration want to use? ")
num1 =float(input("enter the first number"))
num2 =float(input("enter the socend number"))
if opration == ("+"):
    print(num1 + num2)
elif opration == ("-"):
    print(num1 - num2)
elif opration == ("*"):
    print(num1 * num2)  
elif opration == ("/"):
    print(num1 / num2)   
else:
    print("end")