Problem Statement

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.