One out of Three

AtCoder

IDabc075_a

Time2000ms

Memory256MB

Difficulty—

You are given three integers, $A$, $B$ and $C$. Among them, two are the same, but the remaining one is different from the rest. For example, when $A=5,B=7,C=5$, $A$ and $C$ are the same, but $B$ is different. Find the one that is different from the rest among the given three integers. ## Constraints * $-100 \leq A,B,C \leq 100$ * $A$, $B$ and $C$ are integers. * The input satisfies the condition in the statement. ## Input Input is given from Standard Input in the following format: $A$ $B$ $C$ [samples]

Samples

Input #1

5 7 5

Output #1

7

This is the same case as the one in the statement.

Input #2

1 1 7

Output #2

7

In this case, $C$ is the one we seek.

Input #3

\-100 100 100

Output #3

\-100

API Response (JSON)

{
  "problem": {
    "name": "One out of Three",
    "description": {
      "content": "You are given three integers, $A$, $B$ and $C$.   Among them, two are the same, but the remaining one is different from the rest.   For example, when $A=5,B=7,C=5$, $A$ and $C$ are the same, but $B$ i",
      "description_type": "Markdown"
    },
    "platform": "AtCoder",
    "limit": {
      "time_limit": 2000,
      "memory_limit": 262144
    },
    "difficulty": "None",
    "is_remote": true,
    "is_sync": true,
    "sync_url": null,
    "sign": "abc075_a"
  },
  "statements": [
    {
      "statement_type": "Markdown",
      "content": "You are given three integers, $A$, $B$ and $C$.  \nAmong them, two are the same, but the remaining one is different from the rest.  \nFor example, when $A=5,B=7,C=5$, $A$ and $C$ are the same, but $B$ i...",
      "is_translate": false,
      "language": "English"
    }
  ]
}

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