Contest: Task: Related: TaskA TaskC

Score : $200$ points

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.

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

Input is given from Standard Input in the following format:

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

Print `Yes`

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

otherwise.

5 1 2 6 6 4 4 3 3 3 2

Yes

From the second roll to the fourth roll, three doublets occurred in a row.

5 1 1 2 2 3 4 5 5 6 6

No

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

Yes