Fighting over Candies

AtCoder

IDabc047_a

Time2000ms

Memory256MB

Difficulty—

Two students of AtCoder Kindergarten are fighting over candy packs. There are three candy packs, each of which contains $a$, $b$, and $c$ candies, respectively. Teacher Evi is trying to distribute the packs between the two students so that each student gets the same number of candies. Determine whether it is possible. Note that Evi cannot take candies out of the packs, and the whole contents of each pack must be given to one of the students. ## Constraints * $1 ≦ a, b, c ≦ 100$ ## Input The input is given from Standard Input in the following format: $a$ $b$ $c$ [samples]

Samples

Input #1

10 30 20

Output #1

Yes

Give the pack with $30$ candies to one student, and give the two packs with $10$ and $20$ candies to the other. Then, each gets $30$ candies.

Input #2

30 30 100

Output #2

No

In this case, the student who gets the pack with $100$ candies always has more candies than the other.
Note that every pack must be given to one of them.

Input #3

56 25 31

Output #3

Yes

API Response (JSON)

{
  "problem": {
    "name": "Fighting over Candies",
    "description": {
      "content": "Two students of AtCoder Kindergarten are fighting over candy packs. There are three candy packs, each of which contains $a$, $b$, and $c$ candies, respectively. Teacher Evi is trying to distribute the",
      "description_type": "Markdown"
    },
    "platform": "AtCoder",
    "limit": {
      "time_limit": 2000,
      "memory_limit": 262144
    },
    "difficulty": "None",
    "is_remote": true,
    "is_sync": true,
    "sync_url": null,
    "sign": "abc047_a"
  },
  "statements": [
    {
      "statement_type": "Markdown",
      "content": "Two students of AtCoder Kindergarten are fighting over candy packs.\nThere are three candy packs, each of which contains $a$, $b$, and $c$ candies, respectively.\nTeacher Evi is trying to distribute the...",
      "is_translate": false,
      "language": "English"
    }
  ]
}

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