Transfer

AtCoder
IDabc136_a
Time2000ms
Memory256MB
Difficulty
We have two bottles for holding water. Bottle $1$ can hold up to $A$ milliliters of water, and now it contains $B$ milliliters of water. Bottle $2$ contains $C$ milliliters of water. We will transfer water from Bottle $2$ to Bottle $1$ as much as possible. How much amount of water will remain in Bottle $2$? ## Constraints * All values in input are integers. * $1 \leq B \leq A \leq 20$ * $1 \leq C \leq 20$ ## Input Input is given from Standard Input in the following format: $A$ $B$ $C$ [samples]
Samples
Input #1
6 4 3
Output #1
1

We will transfer two milliliters of water from Bottle $2$ to Bottle $1$, and one milliliter of water will remain in Bottle $2$.
Input #2
8 3 9
Output #2
4
Input #3
12 3 7
Output #3
0
API Response (JSON)
{
  "problem": {
    "name": "Transfer",
    "description": {
      "content": "We have two bottles for holding water. Bottle $1$ can hold up to $A$ milliliters of water, and now it contains $B$ milliliters of water. Bottle $2$ contains $C$ milliliters of water. We will transfer ",
      "description_type": "Markdown"
    },
    "platform": "AtCoder",
    "limit": {
      "time_limit": 2000,
      "memory_limit": 262144
    },
    "difficulty": "None",
    "is_remote": true,
    "is_sync": true,
    "sync_url": null,
    "sign": "abc136_a"
  },
  "statements": [
    {
      "statement_type": "Markdown",
      "content": "We have two bottles for holding water.\nBottle $1$ can hold up to $A$ milliliters of water, and now it contains $B$ milliliters of water.\nBottle $2$ contains $C$ milliliters of water.\nWe will transfer ...",
      "is_translate": false,
      "language": "English"
    }
  ]
}
Full JSON Raw Segments