/* package whatever; // don't place package name! */
import java.util.*;
import java.lang.*;
import java.io.*;
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
{
// your code goes here
}
}
interface Sinhvien{
public void dihoc();
public void nghihoc();
}
interface Sinhvien1{
public void dihoc1();
}
class Sinhvien2 implements Sinhvien,Sinhvien1{
public void dihoc(){
}
public void nghihoc(){
}
public void dihoc1(){
}
}
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