Java, Size 97, Olavi MustanojaJava, Size 97, Olavi Mustanoja
class _{public static void main(String[]s){for(int b:"534g".getBytes())System.out.write(b^'m');}} There are not too many possibilities with only 1 character ^ usable as operator and lack of p (for printing operation).
I wither the input down to 345_gsm and do some math to map it to the output.