//interactive
ll@n,z=0;
ll r[1001];
rep(i,10){
	ll k=0;
	rep(j,1001){
		r[k]=j;
		k+=j>>i&1;
	}
	wt(10000,k);
	wt(r(k));
	ll@c;
	z+=(1<<i)*c;
}
wt(z);