I don't know what is wrong with it?!

Question

def multiply(operator):
operator =input('enter the operator u wanna use(*,/)')
int_a = input('enter the first number u want to multiply :')
int_b = input('rnter the other number you want to multiply :')
if operator == "*" :
return print('the calculation of',int_a,"*",int_b,"="), print(int(int_a)*int(int_b))
elif operator == "/":
return print('the calculation of',int_a,"/",int_b,"="), print(int(int_a)/int(int_b))
else:
print("invalid operator!.")