Problem: We have a tree with N vertices. The vertices are numbered 1 to N, and the i-th edge connects Vertex a_i and Vertex b_i.

Takahashi loves the number 3. He is seeking a permutation p_1, p_2, \ldots , p_N of integers from 1 to N satisfying the following condition:

* For every pair of vertices (i, j), if the distance between Vertex i and Vertex j is 3, the sum or product of p_i and p_j is a multiple of 3.



Here the distance between Vertex i and Vertex j is the number of edges contained in the shortest path from Vertex i to Vertex j.

Help Takahashi by finding a permutation that satisfies the condition.

Constraints

* 2\leq N\leq 2\times 10^5
* 1\leq a_i, b_i \leq N
* The given graph is a tree.

Input

Input is given from Standard Input in the following format:


N
a_1 b_1
a_2 b_2
\vdots
a_{N-1} b_{N-1}


Output

If no permutation satisfies the condition, print `-1`.

Otherwise, print a permutation satisfying the condition, with space in between. If there are multiple solutions, you can print any of them.

Example

Input

5
1 2
1 3
3 4
3 5


Output

1 2 5 4 3

Solution (in PYTHON3):

Solution:
import queue

N = int(input())

e = [[] for i in range(N+1)]
for i in range(N-1):
    a, b = map(int, input().split())
    e[a].append(b)
    e[b].append(a)

even_v = []
odd_v = []

is_reached = [False] * (N+1)
q = queue.Queue()
# [start vertex, total distance]
q.put([1, 0])

# BFS
while not q.empty():
    v, d = q.get()
    if is_reached[v]:
        continue
    is_reached[v] = True
    
    if d%2 == 0:
        even_v.append(v)
    else:
        odd_v.append(v)

    for tv in e[v]:
        q.put([tv, d+1])

r1 = list(range(1, N+1, 3))
r2 = list(range(2, N+1, 3))
r3 = list(range(3, N+1, 3))

ans = [0] * N
if len(even_v) <= len(r3):
    for v in even_v:
        ans[v-1] = r3.pop()
elif len(odd_v) <= len(r3):
    for v in odd_v:
        ans[v-1] = r3.pop()
else:
    for v in even_v:
        if not r1:
            break
        ans[v-1] = r1.pop()
    for v in odd_v:
        if not r2:
            break
        ans[v-1] = r2.pop()
rv = []
rv.extend(r1)
rv.extend(r2)
rv.extend(r3)
for i, p in enumerate(ans):
    if p == 0:
        ans[i] = rv.pop()

print(' '.join(list(map(str, ans))))