Round One

AtCoder

IDabc148_a

Time2000ms

Memory256MB

Difficulty—

Takahashi is solving quizzes. He has easily solved all but the last one. The last quiz has three choices: $1$, $2$, and $3$. With his supernatural power, Takahashi has found out that the choices $A$ and $B$ are both wrong. Print the correct choice for this problem. ## Constraints * Each of the numbers $A$ and $B$ is $1$, $2$, or $3$. * $A$ and $B$ are different. ## Input Input is given from Standard Input in the following format: $A$ $B$ [samples]

Samples

Input #1

3
1

Output #1

2

When we know $3$ and $1$ are both wrong, the correct choice is $2$.

Input #2

1
2

Output #2

API Response (JSON)

{
  "problem": {
    "name": "Round One",
    "description": {
      "content": "Takahashi is solving quizzes. He has easily solved all but the last one. The last quiz has three choices: $1$, $2$, and $3$. With his supernatural power, Takahashi has found out that the choices $A$ a",
      "description_type": "Markdown"
    },
    "platform": "AtCoder",
    "limit": {
      "time_limit": 2000,
      "memory_limit": 262144
    },
    "difficulty": "None",
    "is_remote": true,
    "is_sync": true,
    "sync_url": null,
    "sign": "abc148_a"
  },
  "statements": [
    {
      "statement_type": "Markdown",
      "content": "Takahashi is solving quizzes. He has easily solved all but the last one.\nThe last quiz has three choices: $1$, $2$, and $3$.\nWith his supernatural power, Takahashi has found out that the choices $A$ a...",
      "is_translate": false,
      "language": "English"
    }
  ]
}

Full JSON Raw Segments