Go to Jail

AtCoder

IDabc179_b

Time2000ms

Memory256MB

Difficulty—

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: $N$ $D_{1,1}$ $D_{1,2}$ $\vdots$ $D_{N,1}$ $D_{N,2}$ [samples]

Samples

Input #1

Output #1

Yes

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

Input #2

Output #2

No

Input #3

Output #3

Yes

API Response (JSON)

{
  "problem": {
    "name": "Go to Jail",
    "description": {
      "content": "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",
      "description_type": "Markdown"
    },
    "platform": "AtCoder",
    "limit": {
      "time_limit": 2000,
      "memory_limit": 262144
    },
    "difficulty": "None",
    "is_remote": true,
    "is_sync": true,
    "sync_url": null,
    "sign": "abc179_b"
  },
  "statements": [
    {
      "statement_type": "Markdown",
      "content": "Tak performed the following action $N$ times: rolling two dice. The result of the $i$\\-th roll is $D_{i,1}$ and $D_{i,2}$.\nCheck if doublets occurred at least three times in a row. Specifically, check...",
      "is_translate": false,
      "language": "English"
    }
  ]
}

Full JSON Raw Segments