#define Z '\0'
#define A malloc
#define B char
#define C const B
#define Q const
#define D while
#define F static
#define G return
#define H sizeof
#define I if
#define J int
#define O *s
#define P !=
#define K J a(C 0,B h)
#define L J b(C 0,B h)
#define M F void c(B *y,C *w,B h)
#define N B *d(C 0,B h)
#define R B **e(B Q 0,B h)
#define S *w
#define T I(0!=h&&0!=Z)
#define U D(0==h){s++;}I(a(s,h)>0){*p=d(s,h);p++;s+=a(s,h);}
#define V J o;B **p;J q;I(!s)G(0)
#define W V;q=b(s,h);o=0;p=A(H(B*)*(q+1))
#define X D(0==h&&0!=Z){s++;}T{x++;}D(0!=h&&0!=Z){s++;}
#define wake K{J l=0;D(0!=h&&0!=Z){l++;s++;}G(l);}
#define me L{J x;x=0;D(0!=Z){X}G(x);}
#define up M{D(S!=h&&S!=Z){*y=S;y++;w++;}*y=Z;}
#define inside N{B *u;u=A(H(B)*a(s,h));c(u,s,h);G(u);}
#define cant_wake_up R{W;I(p==0){G(0);}D(0!=Z){U}p-=q;p[q]=0;G(p);}

int main () {
wake me up inside cant_wake_up
}