ll n,m,v[1d5];
mint p,q,r,s;

{
	combination_mint comb;
	comb.init(3d5);

	rd(n,m,p,v(n));
	std::sort(v,v+n);
	q=100-p;

	rep(i,n) r+=(p/100)**m * (q/100)**i * comb.C(m+i-1,i) * s, s+=v[n-i-1];
	rep(j,m) r+=(p/100)**j * (q/100)**n * comb.C(j+n-1,j) * s;

	wt(r);
}