#include <bits/stdc++.h>
using namespace std;
 
int main() 
{
    cin.tie(NULL);
    ios_base::sync_with_stdio(false);
	int test;
	cin>>test;
 
	while(test--)
	{
	int count=0;
	int n,h,a,b,p;
	cin>>n>>h>>a>>b>>p;
	int g;
	g=h-a;
	int t[n],x[n];
	for(int i=0;i<n;i++)
	{
		cin>>t[i]>>x[i]; //t=type of barrier & x=height of barrier
	}
 
	for(int i=0;i<n;i++)
	{
		if(t[i]==1)
		{
			if(g==x[i] || g<x[i])
			{
				count++;
			}
		}
		if(t[i]==2)
		{
			if(b==x[i] || b>x[i])
			{
				count++;
			}
		}
 
		else 
		{
			if(p>1)
			{
				count++;
				p=p-1;
			}
		}
	}
 
	cout<<count<<endl;
 
	}
	return 0;
}

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Mwo2IDUgMSAyIDMKMiAyCjIgMQoxIDEwCjIgOAoyIDQKMSAyCjEgNCAyIDUgMQoyIDYKNiA1IDEgMiAzCjIgMgoyIDEKMSAxMAoyIDgKMiA0CjEgNg==

3
6 5 1 2 3
2 2
2 1
1 10
2 8
2 4
1 2
1 4 2 5 1
2 6
6 5 1 2 3
2 2
2 1
1 10
2 8
2 4
1 6