5315: 【GESP202312五级】小杨的幸运数
Memory Limit:128 MB
Time Limit:1.000 S
Judge Style:Text Compare
Creator:
Submit:1
Solved:1
Description

Input

Output

Sample Input Copy
2 4
1
4
5
9
Sample Output Copy
4
lucky
8
lucky
HINT
样例解释1: