5668: Q21-2 字母排序

Memory Limit:128 MB Time Limit:1.000 S
Judge Style:Text Compare Creator:
Submit:57 Solved:20

Description

输入4个字母,按字典顺序输出它们

Input

输入四个字母

Output

输出按子典顺序排好序的代码

Sample Input Copy

b a c d

Sample Output Copy

a b c d