JFIFxxC      C  " }!1AQa"q2#BR$3br %&'()*456789:CDEFGHIJSTUVWXYZcdefghijstuvwxyz w!1AQaq"2B #3RbrPhil Nelson wrote bc, including the number.c source in the "lib" directory. Ken Pizzini wrote dc, making use of the lib/number.c code that Phil Nelson wrote to handle the actual multiprecision arithmetic.