CodeQUEEN 2026 予選 (AtCoder Beginner Contest 462)
秘密数字AI (CI翻译)
Problem Statement
题目描述
AI (CI翻译)You are given a string $S$ consisting of lowercase English letters and digits.
给定一个由小写英文字母和数字组成的字符串 $S$。AI (CI翻译)
Extract only the digit characters from $S$ and output the string formed by arranging them in their original order.
从 $S$ 中提取所有数字字符,并按照它们在原字符串中的顺序组成字符串后输出。AI (CI翻译)
Constraints
约束条件
AI (CI翻译)$S$is a string of length between$1$and$50$, inclusive, consisting of lowercase English letters and digits.
$S$的长度在$1$到$50$之间(包含两端),且由小写英文字母和数字组成。
Input
输入格式
AI (CI翻译)The input is given from Standard Input in the following format:
输入从标准输入按以下格式给出:AI (CI翻译)
S
SAI (CI翻译)
Output
输出格式
AI (CI翻译)Output the answer.
输出答案。AI (CI翻译)
样例
Input #1
abc462
Output #1
462
The digits contained in `abc462` are `4`, `6`, `2`. Concatenating them in their original order gives `462`. Thus, output `462`.
Input #2
codequeen
Output #2
`codequeen` contains no digits, so output the empty string.
Input #3
31415
Output #3
31415
Input #4
10plus2is12
Output #4
10212
题目信息
题面与样例版权归 AtCoder 及出题人所有;中文翻译由 AI 生成(gpt-6.1-sol),如有出入请以原文为准。