#include <stdio.h>

typedef struct {
	int key, id;
} data;

void merge_sort(data x[], int n)
{
	static data y[100001] = {};
	if (n <= 1) return;
	merge_sort(&(x[0]), n/2);
	merge_sort(&(x[n/2]), (n+1)/2);
	
	int i, p, q;
	for (i = 0, p = 0, q = n/2; i < n; i++) {
		if (p >= n/2) y[i] = x[q++];
		else if (q >= n) y[i] = x[p++];
		else y[i] = (x[p].key < x[q].key)? x[p++]: x[q++];
	}
	for (i = 0; i < n; i++) x[i] = y[i];
}

int main()
{
	int i, N, A[100001], B[100001];
	data d[100001];
	scanf("%d", &N);
	for (i = 1; i <= N; i++) {
		scanf("%d %d", &(A[i]), &(B[i]));
		d[i-1].key = A[i] + B[i];
		d[i-1].id = i;
	}
	merge_sort(d, N);
	
	int j;
	long long sum = 0;
	for (i = 0; i < N; i++) {
		j = d[i].id;
		if (sum > B[j]) break;
		sum += A[j];
	}
	if (i == N) printf("Yes\n");
	else printf("No\n");
	fflush(stdout);
	return 0;
}