N,K=map(int,input().split())

def xx(t):
    a=t[0]
    b=t[1]
    if a==0:
        if 0<=b<=K:
            return (-10**18,10**18)
        else:
            return (10**18,-10**18)
    if a>0:
        l=(-b-1)//a+1
        r=(K-b)//a
        return (l,r)
    if a<0:
        a=-a
        b=-b
        l=(-K-b-1)//a+1
        r=(-b)//a
        return (l,r)
    
RX=[tuple(map(int,input().split())) for _ in range(N)]

for i in range(N):
    dp=[(0,0) for _ in range(N)]
    S=[(0,0) for _ in range(N+1)]
    for j in range(N-1,-1,-1):
        if i!=j:
            dp[j]=((S[RX[j][0]][0]-S[j+1][0]),RX[j][1]+(S[RX[j][0]][1]-S[j+1][1]))
            S[j]=(S[j+1][0]+dp[j][0],S[j+1][1]+dp[j][1])
        else:
            dp[j]=(1,0)
            S[j]=(S[j+1][0]+dp[j][0],S[j+1][1]+dp[j][1])
    l=-10**18
    r=10**18
    for j in range(N):
        ll,rr=xx(dp[j])
        l=max(l,ll)
        r=min(r,rr)
    if l<=r:
        print('Yes')
    else:
        print('No')