View Compilation Error

0_0_22445414_24691\Main.java:1: 错误: 需要class, interface或enum
 main() 
 ^
0_0_22445414_24691\Main.java:5: 错误: 需要class, interface或enum
		while(scanf("%d%d",&a,&b)！=EOF)
		^
0_0_22445414_24691\Main.java:5: 错误: 非法字符: '\uff01'
		while(scanf("%d%d",&a,&b)！=EOF)
		                         ^
0_0_22445414_24691\Main.java:9: 错误: 需要class, interface或enum
		}
		^
4 个错误