A keyboard typically has 46 keys that can be modified and four ways to modify them, SHIFT, CTRL, ALT, and no modification. For instance, to type a percent sign, you hold the SHIFT key and type the number 5. Ivan has three keyboards with this same configuration set for three alphabets: English, Russian, and Japanese. Assuming Ivan only uses no more than one modification key at a time, how many different characters can he type?
