Вопрос про флаг

#define ADMIN_ALL  0 /* everyone */
#define ADMIN_IMMUNITY  (1<<0) /* flag "a" */
#define ADMIN_RESERVATION (1<<1) /* flag "b" */
#define ADMIN_KICK  (1<<2) /* flag "c" */
#define ADMIN_BAN  (1<<3) /* flag "d" */
#define ADMIN_SLAY  (1<<4) /* flag "e" */
#define ADMIN_MAP  (1<<5) /* flag "f" */
#define ADMIN_CVAR  (1<<6) /* flag "g" */
#define ADMIN_CFG  (1<<7) /* flag "h" */
#define ADMIN_CHAT  (1<<8) /* flag "i" */
#define ADMIN_VOTE  (1<<9) /* flag "j" */
#define ADMIN_PASSWORD  (1<<10) /* flag "k" */
#define ADMIN_RCON  (1<<11) /* flag "l" */
#define ADMIN_LEVEL_A  (1<<12) /* flag "m" */
#define ADMIN_LEVEL_B  (1<<13) /* flag "n" */
#define ADMIN_LEVEL_C  (1<<14) /* flag "o" */
#define ADMIN_LEVEL_D  (1<<15) /* flag "p" */
#define ADMIN_LEVEL_E  (1<<16) /* flag "q" */
#define ADMIN_LEVEL_F  (1<<17) /* flag "r" */
#define ADMIN_LEVEL_G  (1<<18) /* flag "s" */
#define ADMIN_LEVEL_H  (1<<19) /* flag "t" */
#define ADMIN_MENU  (1<<20) /* flag "u" */
#define ADMIN_ADMIN  (1<<24) /* flag "y" */
#define ADMIN_USER  (1<<25) /* flag "z" */
#define FLAG_KICK  (1<<0) /* flag "a" */
#define FLAG_TAG  (1<<1) /* flag "b" */
#define FLAG_AUTHID  (1<<2) /* flag "c" */
#define FLAG_IP   (1<<3) /* flag "d" */
#define FLAG_NOPASS  (1<<4) /* flag "e" */