题目描述
Lucifer and Crowley being two most dangerous demons are fighting to become king of hell. A question is given to them. The one who solves it first becomes King. Given an array A of N elements and an integer M. Print YES if you find three distinct indexes i, j, k such that 1 ≤ i, j, k ≤ N and A[i]+A[j]+A[k] = M else print NO. Help Lucifer to win and become king of hell.
Constraints
1 ≤ N ≤ 1000
0 ≤ Element of array ≤ 1000000000
Input
First line contains two integers N and K separated with a space respectively.
Next line contains N integers separated with space.
Output
In single line print YES or NO
Setter : Shiv Dhingra
SAMPLE INPUT
5 10
2 3 4 5 6
SAMPLE OUTPUT
YES
输入格式
见题面
输出格式
见题面
样例输入
5 10
2 3 4 5 6
SAMPLE
样例输出
YES