P10029 [AtCoder] AtCoder Beginner Contest 168 - .. (Double Dots)
普及
题目描述

There is a cave.

The cave has N rooms and M passages. The rooms are numbered 1 to N, and the passages are numbered 1 to M. Passage i connects Room A_i and Room B_i bidirectionally. One can travel between any two rooms by traversing passages. Room 1 is a special room with an entrance from the outside.

It is dark in the cave, so we have decided to place a signpost in each room except Room 1. The signpost in each room will point to one of the rooms directly connected to that room with a passage.

Since it is dangerous in the cave, our objective is to satisfy the condition below for each room except Room 1.

  • If you start in that room and repeatedly move to the room indicated by the signpost in the room you are in, you will reach Room 1 after traversing the minimum number of passages possible.

Determine whether there is a way to place signposts satisfying our objective, and print one such way if it exists.

Constraints

  • All values in input are integers.
  • $2 \leq N \leq 10^5$
  • $1 \leq M \leq 2 \times 10^5$
  • $1 \leq A_i, B_i \leq N$\ $(1 \leq i \leq M)$
  • $A_i \neq B_i$\ $(1 \leq i \leq M)$
  • One can travel between any two rooms by traversing passages.

Input

Input is given from Standard Input in the following format:

N M
A_1 B_1
:
A_M B_M

Output

If there is no way to place signposts satisfying the objective, print No.

Otherwise, print N lines. The first line should contain Yes, and the $i-th line (2 \leq i \leq N)$ should contain the integer representing the room indicated by the signpost in Room i.

Examples

Input

4 4
1 2
2 3
3 4
4 2

Output

Yes
1
2
2

Input

6 9
3 4
6 1
2 4
5 3
4 6
1 5
6 2
4 5
5 6

Output

Yes
6
5
5
1
1

输入格式

见题面

输出格式

见题面

样例输入
6 9 3 4 6 1 2 4 5 3 4 6 1 5 6 2 4 5 5 6
样例输出
Yes 6 5 5 1 1