#define STR1(u) # u#define pass(a) a#define __ASM_REG(reg)         STR1(one##reg)#define _ASM_DX         __ASM_REG(tok)X162 pass(__ASM_REG(tok))X161 pass(_ASM_DX)X163 pass(STR1(one##tok)) X170 pass(x ## y)X171 pass(x pass(##) y) #define Y(x) Z(x)#define X YX180 return X(X(1));