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B. Two Sets
time limit per test
1 second
memory limit per test
256 megabytes
input
standard input
output
standard output

Little X has n distinct integers: p 1, p 2, ..., p n. He wants to divide all of them into two sets A and B. The following two conditions must be satisfied:

• If number x belongs to set A, then number a - x must also belong to set A.
• If number x belongs to set B, then number b - x must also belong to set B.

Help Little X divide the numbers into two sets or determine that it's impossible.

Input

The first line contains three space-separated integers n, a, b (1 ≤ n ≤ 105; 1 ≤ a, b ≤ 109). The next line contains n space-separated distinct integers p 1, p 2, ..., p n (1 ≤ p i ≤ 109).

Output

If there is a way to divide the numbers into two sets, then print "YES" in the first line. Then print n integers: b 1, b 2, ..., b n ( b i equals either 0, or 1), describing the division. If b i equals to 0, then p i belongs to set A, otherwise it belongs to set B.

If it's impossible, print "NO" (without the quotes).

Examples
Input
4 5 92 3 4 5
Output
YES0 0 1 1
Input
3 3 41 2 4
Output
NO
Note

It's OK if all the numbers are in the same set, and the other one is empty.