题目描述
You received a card at a banquet. On the card, a matrix of $N$ rows and $M$ columns and two integers $K$ and $S$ are written. All the elements in the matrix are integers, and an integer at the $i$-th row from the top and the $j$-th column from the left is denoted by $A_{i,j}$.
You can select up to $K$ elements from the matrix and invert the sign of the elements. If you can make a matrix such that there is no vertical or horizontal contiguous subsequence whose sum is greater than $S$, you can exchange your card for a prize.
Your task is to determine if you can exchange a given card for a prize.
Input
The input consists of a single test case of the following form.
$N$ $M$ $K$ $S$
$A_{1,1}$ $A_{1,2}$ ... $A_{1,M}$
:
$A_{N,1}$ $A_{N,2}$ ... $A_{N,M}$
The first line consists of four integers $N, M, K$ and $S$ ($1 \leq N, M \leq 10, 1 \leq K \leq 5, 1 \leq S \leq 10^6$). The following $N$ lines represent the matrix in your card. The ($i+1$)-th line consists of $M$ integers $A_{i,1}, A_{i,2}, ..., A_{i, M}$ ($-10^5 \leq A_{i,j} \leq 10^5$).
Output
If you can exchange your card for a prize, print 'Yes'. Otherwise, print 'No'.
Examples
Input
3 3 2 10
5 3 7
2 6 1
3 4 1
Output
Yes
Input
2 3 1 5
4 8 -2
-2 -5 -3
Output
Yes
Input
2 3 1 5
9 8 -2
-2 -5 -3
Output
No
Input
2 2 3 100
0 0
0 0
Output
Yes
输入格式
见题面
输出格式
见题面