Job Interview

AtCoder

IDabc298_a

Time2000ms

Memory256MB

Difficulty—

Takahashi had a job interview. You are given the number of interviewers, $N$, and a string $S$ of length $N$ representing the interviewers' evaluations of him. For each $i=1,2,\ldots,N$, the $i$\-th character of $S$ corresponds to the $i$\-th interviewer's evaluation; `o` means Good, `-` means Fair, and `x` means Poor. Takahashi will pass if both of the following conditions are satisfied, and fail otherwise. * At least one interviewer's evaluation is Good. * No interviewer's evaluation is Poor. Determine whether Takahashi passes. ## Constraints * $1 \leq N \leq 100$ * $S$ is a string of length $N$ consisting of `o`, `-`, and `x`. ## Input The input is given from Standard Input in the following format: $N$ $S$ [samples]

Samples

Input #1

4
oo--

Output #1

Yes

The first and second interviewers' evaluations are Good, and no interviewer's evaluation is Poor, so he passes.

Input #2

3
---

Output #2

No

No interviewer's evaluation is Good, so he fails.

Input #3

1
o

Output #3

Yes

Input #4

100
ooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooox

Output #4

No

The $100$\-th interviewer's evaluation is Poor, so he fails.

API Response (JSON)

{
  "problem": {
    "name": "Job Interview",
    "description": {
      "content": "Takahashi had a job interview. You are given the number of interviewers, $N$, and a string $S$ of length $N$ representing the interviewers' evaluations of him.   For each $i=1,2,\\ldots,N$, the $i$\\-th",
      "description_type": "Markdown"
    },
    "platform": "AtCoder",
    "limit": {
      "time_limit": 2000,
      "memory_limit": 262144
    },
    "difficulty": "None",
    "is_remote": true,
    "is_sync": true,
    "sync_url": null,
    "sign": "abc298_a"
  },
  "statements": [
    {
      "statement_type": "Markdown",
      "content": "Takahashi had a job interview.\nYou are given the number of interviewers, $N$, and a string $S$ of length $N$ representing the interviewers' evaluations of him.  \nFor each $i=1,2,\\ldots,N$, the $i$\\-th...",
      "is_translate": false,
      "language": "English"
    }
  ]
}

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