n = int(input())
ab = [list(map(int, input().split())) for i in range(n)]
ab.sort(key=lambda x: (x[0] / x[1]))
s = 0
for i in range(n):
    if s > ab[i][1]:
        exit(print("No"))
    else:
        s += ab[i][0]
print("Yes")