// remove more clutter #define O printf #define R return #define Z static #define P(x,y) {if(x)R(y);} #define U(x) P(!(x),0) #define SW switch #de

// remove more clutter #define O printf #define R return #define Z static #define P(x,y) {if(x)R(y);} #define U(x) P(!(x),0) #define SW switch #define CS(n,x) case n:x;break; #define CD default Thanks for that. The comment makes it classic.