im having an invalid syntax in if adc=1:

I'm having a problem getting the output of the switcher code.

def numbers_to_string(argument):
    switcher = {
        0:"Zero",
        1:"One",
        2:"Two"
    }
    return switcher.get(argument,"Nothing")

adc = argument
if adc=1:
    print(numbers_to_string(argument))