0pts蒟蒻求助；；；

#include <iostream>
#include <cstring>
#include <cstdio>
#include <cstdlib>
#include <cmath>
#include <algorithm>
#include <string>
using namespace std;
int main()
{
	long long n,m,k,p;
	cin>>n>>m>>k>>p;
	long long zh=k/p;
	long long ch=k-zh*p;
	if((zh-1)*(n-p)>=ch) 
	{
		cout<<"YES"<<endl;
		for(long long i=1;i<=p;i++)
		{
			cout<<zh<<' '<<m-zh<<endl;
		}
	    long long kk=1;
	    for(long long i=p+1;i<=n;i++)
	    {
			while(ch<zh-kk) kk++; 
			cout<<zh-kk<<' '<<m-(zh-kk)<<endl;
			ch-=zh-kk;
		}
	}
	else
	{
		cout<<"NO"<<endl;
	}
}