Tak performed the following action N times: rolling two dice. The result of the i-th roll is D_{i,1} and D_{i,2}.

Check if doublets occurred at least three times in a row. Specifically, check if there exists at lease one i such that D_{i,1}=D_{i,2}, D_{i+1,1}=D_{i+1,2} and D_{i+2,1}=D_{i+2,2} hold.

Constraints

• $3 \leq N \leq 100$
• $1\leq D_{i,j} \leq 6$
• All values in input are integers.

Input

Input is given from Standard Input in the following format:

N
D_{1,1} D_{1,2}
$\vdots$
D_{N,1} D_{N,2}

Output

Print Yes if doublets occurred at least three times in a row. Print No otherwise.

Examples

Input

5
1 2
6 6
4 4
3 3
3 2

Output

Yes

Input

5
1 1
2 2
3 4
5 5
6 6

Output

No

Input

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

Output

Yes

见题面

见题面