AtCoder Beginner Contest 150
A
500 Yen Coins
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原题
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Problem Statement

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Takahashi has $K$ $500$-yen coins. (Yen is the currency of Japan.) If these coins add up to $X$ yen or more, print Yes; otherwise, print No.

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Constraints

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  • $1 \leq K \leq 100$
  • $1 \leq X \leq 10^5$
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Input

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Input is given from Standard Input in the following format:

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K X

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Output

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If the coins add up to $X$ yen or more, print Yes; otherwise, print No.

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样例

Input #1
2 900
Output #1
Yes
Two $500$-yen coins add up to $1000$ yen, which is not less than $X = 900$ yen.
Input #2
1 501
Output #2
No
One $500$-yen coin is worth $500$ yen, which is less than $X = 501$ yen.
Input #3
4 2000
Output #3
Yes
Four $500$-yen coins add up to $2000$ yen, which is not less than $X = 2000$ yen.
题目信息
题号
abc150_a
时间限制
2 s
内存限制
1024 MB

题面与样例版权归 AtCoder 及出题人所有;中文翻译由 AI 生成(CI 管线),如有出入请以原文为准。