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