#include<iostream>
#include<algorithm>
using namespace std;
int N;
int A[1<<17],B[1<<17],id[1<<17];
main()
{
	cin>>N;
	for(int i=0;i<N;i++)
	{
		cin>>A[i]>>B[i];
		id[i]=i;
	}
	sort(id,id+N,[](int i,int j){return A[i]+B[i]<A[j]+B[j];});
	int S=0;
	for(int i=0;i<N;i++)
	{
		if(S>B[i])
		{
			cout<<"No"<<endl;
			return 0;
		}
		S+=A[i];
	}
	cout<<"Yes"<<endl;
}