def main():
    N = int(input())
    Z = []
    for i in range(N):
        a,b = map(int,input().split())
        Z.append((a,b))
    Z.sort(key = lambda x: x[1])
    #print(Z)

    w = 0
    hold = -1
    for i in range(N):
        a,b = Z[i]
        if hold != -1: #何かをキープしている
            ha,hb = Z[hold]
            if w <= hb and w + ha <= b: #間にHoldを入れることができる
                hold = -1
                w += ha + a
            else: #入れられない
                if w > b:
                    #print(i,hold,w,b)
                    print("No");exit()
                else:
                    w += a
        else:
            if w > b:
                hold = i - 1
                w -= Z[hold][0]
                if w > b:
                    print("No");exit()
                else:
                    w += a
            else:
                w += a
    if hold == -1:
        print("Yes")
    else:
        ha,hb = Z[hold]
        if w > hb:
            print("No")
        else:
            print("Yes")

if __name__ == '__main__':
    main()