KEYENCE String

AtCoder

IDkeyence2019_b

Time2000ms

Memory256MB

Difficulty—

A string is called a KEYENCE string when it can be changed to `keyence` by removing its contiguous substring (possibly empty) only once. Given a string $S$ consisting of lowercase English letters, determine if $S$ is a KEYENCE string. ## Constraints * The length of $S$ is between $7$ and $100$ (inclusive). * $S$ consists of lowercase English letters. ## Input Input is given from Standard Input in the following format: $S$ [samples]

Samples

Input #1

keyofscience

Output #1

YES

`keyence` is an abbreviation of `key of science`.

Input #2

mpyszsbznf

Output #2

NO

Input #3

ashlfyha

Output #3

NO

Input #4

keyence

Output #4

YES

API Response (JSON)

{
  "problem": {
    "name": "KEYENCE String",
    "description": {
      "content": "A string is called a KEYENCE string when it can be changed to `keyence` by removing its contiguous substring (possibly empty) only once. Given a string $S$ consisting of lowercase English letters, det",
      "description_type": "Markdown"
    },
    "platform": "AtCoder",
    "limit": {
      "time_limit": 2000,
      "memory_limit": 262144
    },
    "difficulty": "None",
    "is_remote": true,
    "is_sync": true,
    "sync_url": null,
    "sign": "keyence2019_b"
  },
  "statements": [
    {
      "statement_type": "Markdown",
      "content": "A string is called a KEYENCE string when it can be changed to `keyence` by removing its contiguous substring (possibly empty) only once.\nGiven a string $S$ consisting of lowercase English letters, det...",
      "is_translate": false,
      "language": "English"
    }
  ]
}

Full JSON Raw Segments