Read infinitely from stdin, and convert every number to the corresponding symbol on a US qwerty keyboard.
No string or character literals anywhere are permitted.
E.g. if the input is
117758326, the output is
Letters and symbols that aren't on numbers are left alone;
11g2;;'1g2311hh21930 turns into
Shortest code, in bytes, wins.
For those who don't have a US qwerty keyboard, use the following as a guide:
1 -> ! 2 -> @ 3 -> # 4 -> $ 5 -> % 6 -> ^ 7 -> & 8 -> * 9 -> ( 0 -> )