UVA-10633 - Rare Easy Problem

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  • 本題選為「20180327 / 20130326 大學程式能力檢定 CPE」題目。

題意概要

假設有一個整數 ,將 N 去掉個位數字後所形成的數字 ,題目目前已知 ,反求出可能的 為多少 ( 可能有兩組解,輸出須按照由小到大的方式)。


Input

Input consists of multiple lines, one line per case. Each line contains a single positive integer between and inclusive, giving the value of . Input is terminated by a line containing 0.


Output

For each case, print one line containing the possible values of in sorted order. Separate consecutive numbers with a single space.


Sample Input

18
0

Sample Output

19 20
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David Lu
Hello, I'm David Lu. I am a graduate student in Department of Computer Science at National Chiao Tung University, Taiwan. I am in the Networking and Sensing Systems (NSS) Lab at NCTU. If you have any question, please feel free to contact with me.
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