#define l typedef
#define m struct
#define o malloc
#define p sizeof
#define r scanf
#define s "%d"
#define t "%d\n"
#define u NULL
#define v while 
#define w break 
#define x int 
#define y return 
#define z void
#define U if
#define Z printf
#define E main
#define A else
#define Y { 
#define P }
#define F (
#define G ) 
#define B ;
#define T ,
#define R *
#define V =
#define O !
#define N ?
#define D :