View Compilation Error

0_0_22805945_31579\Main.java:31: 错误: 需要class, interface或enum
 HDOJ1297 Children’s Queue
 ^
0_0_22805945_31579\Main.java:31: 错误: 非法字符: '\u2019'
 HDOJ1297 Children’s Queue
                  ^
0_0_22805945_31579\Main.java:34: 错误: 需要class, interface或enum
import java.math.BigInteger;
^
3 个错误