백준 5073 자바 - 삼각형과 세 변

// 삼각형과 세 변
package Bronze_III_3;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.StringTokenizer;

public class Ex5073 {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
        StringTokenizer st;

        while (true) {
            st = new StringTokenizer(br.readLine());

            int a = Integer.parseInt(st.nextToken());
            int b = Integer.parseInt(st.nextToken());
            int c = Integer.parseInt(st.nextToken());

            if (a == 0 && b == 0 && c == 0) break;

            int max = Math.max(a, Math.max(b, c));
            if (max >= a + b + c - max) {
                System.out.println("Invalid");
            } else if (a == b && b == c) {
                System.out.println("Equilateral");
            } else if (a == b || b == c || a == c) {
                System.out.println("Isosceles");
            } else {
                System.out.println("Scalene");
            }
        }
    }
}