Problem: You are given a weighted tree consisting of n vertices. Recall that a tree is a connected graph without cycles. Vertices u_i and v_i are connected by an edge with weight w_i.

You are given m queries. The i-th query is given as an integer q_i. In this query you need to calculate the number of pairs of vertices (u, v) (u < v) such that the maximum weight of an edge on a simple path between u and v doesn't exceed q_i.

Input

The first line of the input contains two integers n and m (1 ≤ n, m ≤ 2 ⋅ 10^5) — the number of vertices in the tree and the number of queries.

Each of the next n - 1 lines describes an edge of the tree. Edge i is denoted by three integers u_i, v_i and w_i — the labels of vertices it connects (1 ≤ u_i, v_i ≤ n, u_i ≠ v_i) and the weight of the edge (1 ≤ w_i ≤ 2 ⋅ 10^5). It is guaranteed that the given edges form a tree.

The last line of the input contains m integers q_1, q_2, ..., q_m (1 ≤ q_i ≤ 2 ⋅ 10^5), where q_i is the maximum weight of an edge in the i-th query.

Output

Print m integers — the answers to the queries. The i-th value should be equal to the number of pairs of vertices (u, v) (u < v) such that the maximum weight of an edge on a simple path between u and v doesn't exceed q_i.

Queries are numbered from 1 to m in the order of the input.

Examples

Input


7 5
1 2 1
3 2 3
2 4 1
4 5 2
5 7 4
3 6 2
5 2 3 4 1


Output


21 7 15 21 3 


Input


1 2
1 2


Output


0 0 


Input


3 3
1 2 1
2 3 2
1 3 2


Output


1 3 3 

Note

The picture shows the tree from the first example: <image>

Solution (in PYTHON3):

Solution:
n,m=map(int,input().split())

dp=[]

for i in range(n-1):
    u,v,w=map(int,input().split())
    dp.append((w,u-1,v-1))
dp=sorted(dp)
q=[int(x) for x in input().split()]
pos=[]
for i in range(m):
    pos.append(i)

Q=sorted(zip(q,pos))

par=[]
for i in range(0,n):
    par.append(i)

rank=[1]*n

def find(x):
    if(par[x]!=x):
        par[x]=find(par[x])
    return par[x]


global res

res=0

def union(x,y):
    global res
    X=find(x)
    Y=find(y)

    if(rank[X]<rank[Y]):
        temp=X
        X=Y
        Y=temp

    res=res-(rank[X]*(rank[X]-1)//2)
    res=res-(rank[Y]*(rank[Y]-1)//2)
    rank[X]+=rank[Y]
    res=res+(rank[X]*(rank[X]-1)//2)
    par[Y]=X
    """if(X==Y):
        return
    if(rank[X]<rank[Y]):
        par[X]=Y
    elif(rank[X]>rank[Y]):
        par[Y]=X
    else:
        par[Y]=X
        rank[X]=rank[Y]+1"""

ans=[0]*m
ptr=0
for i in range(0,m):
    while(ptr<n-1 and dp[ptr][0]<=Q[i][0]):
        a=dp[ptr][1]
        b=dp[ptr][2]
        union(a,b)
        ptr+=1
    ans[Q[i][1]]=res

print(*ans)