삼각형과 세 변

package backjoon;
import java.util.*;
public class 삼각형변계산 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        while (true){
            int a = sc.nextInt();
            int b = sc.nextInt();
            int c = sc.nextInt();
            if(a==0 && b==0 && c==0){
                break;
            }
            int max = Math.max(a,Math.max(b,c));

            if(max < a + b + c - max){
                if(a==b && b==c && c==a){
                    System.out.println("Equilateral");
                } else if (a==b || b==c || c==a) {
                    System.out.println("Isosceles");
                } else if (a!=b || b!=c || c!=a) {
                    System.out.println("Scalene");
                }else {
                    System.out.println("Invalid");
                }
            }else {
                System.out.println("Invalid");
            }
        }
    }
}
​