public class Main {
public static void main(String[] args) {
Comparator comparator = new ComparatorImpl();
Scanner scanner = new Scanner(System.in);
while (scanner.hasNextInt()) {
int x = scanner.nextInt();
int y = scanner.nextInt();
System.out.println(comparator.max(x, y));
}
}
}
interface Comparator {
/**
* 返回两个整数中的最大值
*/
int max(int x, int y);
}
class ComparatorImpl implements Comparator{
@Override
public int max(int x,int y){
if(x>y){
return x;
}
else{
return y;
}
}
}
//write your code here......