SUBLEX - Lexicographical Substring Search

给定一个字符串，求本质不同排名第k小的子串 输入格式： 第一行给定主串(len<=90000) 第二行给定询问个数T<=500 随后给出T行T个询问，每次询问排名第k小的串，范围在int内 输出格式： 对于每一个询问，输出T行，每行为排名第k小的串 感谢@Creeper_LKF 提供的翻译

Little Daniel loves to play with strings! He always finds different ways to have fun with strings! Knowing that, his friend Kinan decided to test his skills so he gave him a string **S** and asked him **Q** questions of the form: If all distinct substrings of string **S** were sorted lexicographically, which one will be the **K-th** smallest? After knowing the huge number of questions Kinan will ask, Daniel figured out that he can't do this alone. Daniel, of course, knows your exceptional programming skills, so he asked you to write him a program which given **S** will answer Kinan's questions. **Example:** **S** = "aaa" (without quotes) substrings of S are "a" , "a" , "a" , "aa" , "aa" , "aaa". The sorted list of substrings will be: "a", "aa", "aaa". ### Input In the first line there is Kinan's string **S** (with length no more than 90000 characters). It contains only small letters of English alphabet. The second line contains a single integer **Q** (**Q** <= 500) , the number of questions Daniel will be asked. In the next **Q** lines a single integer **K** is given (0 < **K** < 2^31). ### Output Output consists of **Q** lines, the **i-th** contains a string which is the answer to the **i-th** asked question.

aaa
2
2
3

aa
aaa