View Compilation Error

0_0_22425532_21003\Main.java:1: 错误: 需要class, interface或enum
	public static void main(String[] args) {
	              ^
0_0_22425532_21003\Main.java:5: 错误: 需要class, interface或enum
		Scanner input = new Scanner(System.in);
		^
0_0_22425532_21003\Main.java:6: 错误: 需要class, interface或enum
		T = input.nextInt();
		^
0_0_22425532_21003\Main.java:7: 错误: 需要class, interface或enum
		for(int i=1;i<=T;i++)
		^
0_0_22425532_21003\Main.java:7: 错误: 需要class, interface或enum
		for(int i=1;i<=T;i++)
		            ^
0_0_22425532_21003\Main.java:7: 错误: 需要class, interface或enum
		for(int i=1;i<=T;i++)
		                 ^
0_0_22425532_21003\Main.java:11: 错误: 需要class, interface或enum
			BigInteger b =input.nextBigInteger();
			^
0_0_22425532_21003\Main.java:12: 错误: 需要class, interface或enum
			System.out.println("Case "+i+":");
			^
0_0_22425532_21003\Main.java:13: 错误: 需要class, interface或enum
			System.out.println(a+"+"+b+"="+a.add(b));
			^
0_0_22425532_21003\Main.java:14: 错误: 需要class, interface或enum
		}
		^
10 个错误