#include<fstream.h>
#include<iostream.h>
int main ()
{
	long v[500100];
	long long k,n,a,b,i,j,c,s,l;
	ifstream f("divk.in");
	ofstream g("divk.out");
	f>>n>>k>>a>>b;
	for(i=1;i<=n;i++) f>>v[i];
	f.close();
	c=0;
	for(i=1;i<=n-a+1;i++) { 
		s=v[i];
		for(l=1,j=i+1;l<=b;l++,j++) {
			s=s+v[j];
			if((l>=a)&&(s%k==0)) c++;
			cout<<c<<endl;
							}
	    }
	g<<c-1;
	g.close();
	return 0;
}