import sys
input = sys.stdin.readline

N=int(input())
AB=[list(map(int,input().split())) for i in range(N)]

AB.sort(key=lambda x:x[0]+x[1])

SUM=0
for a,b in AB:
    if SUM<=b:
        pass
    else:
        print("No")
        exit()
    SUM+=a

print("Yes")