#D11578. Jigsaw
Jigsaw
Jigsaw
We have N irregular jigsaw pieces. Each piece is composed of three rectangular parts of width 1 and various heights joined together. More specifically:
- The i-th piece is a part of height H, with another part of height A_i joined to the left, and yet another part of height B_i joined to the right, as shown below. Here, the bottom sides of the left and right parts are respectively at C_i and D_i units length above the bottom side of the center part.
Snuke is arranging these pieces on a square table of side 10^{100}. Here, the following conditions must be held:
- All pieces must be put on the table.
- The entire bottom side of the center part of each piece must touch the front side of the table.
- The entire bottom side of the non-center parts of each piece must either touch the front side of the table, or touch the top side of a part of some other piece.
- The pieces must not be rotated or flipped.
Determine whether such an arrangement is possible.
Constraints
- 1 \leq N \leq 100000
- 1 \leq H \leq 200
- 1 \leq A_i \leq H
- 1 \leq B_i \leq H
- 0 \leq C_i \leq H - A_i
- 0 \leq D_i \leq H - B_i
- All input values are integers.
Input
Input is given from Standard Input in the following format:
N H A_1 B_1 C_1 D_1 A_2 B_2 C_2 D_2 : A_N B_N C_N D_N
Output
If it is possible to arrange the pieces under the conditions, print YES
; if it is impossible, print NO
.
Examples
Input
3 4 1 1 0 0 2 2 0 1 3 3 1 0
Output
YES
Input
4 2 1 1 0 1 1 1 0 1 1 1 0 1 1 1 0 1
Output
NO
Input
10 4 1 1 0 3 2 3 2 0 1 2 3 0 2 1 0 0 3 2 0 2 1 1 3 0 3 2 0 0 1 3 2 0 1 1 1 3 2 3 0 0
Output
YES
inputFormat
input values are integers.
Input
Input is given from Standard Input in the following format:
N H A_1 B_1 C_1 D_1 A_2 B_2 C_2 D_2 : A_N B_N C_N D_N
outputFormat
Output
If it is possible to arrange the pieces under the conditions, print YES
; if it is impossible, print NO
.
Examples
Input
3 4 1 1 0 0 2 2 0 1 3 3 1 0
Output
YES
Input
4 2 1 1 0 1 1 1 0 1 1 1 0 1 1 1 0 1
Output
NO
Input
10 4 1 1 0 3 2 3 2 0 1 2 3 0 2 1 0 0 3 2 0 2 1 1 3 0 3 2 0 0 1 3 2 0 1 1 1 3 2 3 0 0
Output
YES
样例
10 4
1 1 0 3
2 3 2 0
1 2 3 0
2 1 0 0
3 2 0 2
1 1 3 0
3 2 0 0
1 3 2 0
1 1 1 3
2 3 0 0
YES