View Compilation Error

0_0_33284850_16497\Main.java:2: 错误: 需要class, interface或enum
    public static void main(String[] args) {
                  ^
0_0_33284850_16497\Main.java:4: 错误: 需要class, interface或enum
        long a,b;
        ^
0_0_33284850_16497\Main.java:5: 错误: 需要class, interface或enum
        a = input.nextLong();
        ^
0_0_33284850_16497\Main.java:6: 错误: 需要class, interface或enum
        b = input.nextLong();
        ^
0_0_33284850_16497\Main.java:7: 错误: 需要class, interface或enum
        System.out.println(a + b);
        ^
0_0_33284850_16497\Main.java:8: 错误: 需要class, interface或enum
}
^
6 个错误