0_0_29658939_15652.cpp:2:1: error: 'package' does not name a type
package hdoj_1272;
^
0_0_29658939_15652.cpp:4:1: error: 'import' does not name a type
import java.io.BufferedInputStream;
^
0_0_29658939_15652.cpp:5:1: error: 'import' does not name a type
import java.util.Scanner;
^
0_0_29658939_15652.cpp:6:1: error: 'import' does not name a type
import java.util.TreeSet;
^
0_0_29658939_15652.cpp:8:1: error: expected unqualified-id before 'public'
public class Main {
^
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