1029: 三角形判定
import java.util.*;
public class Main {
public static void main(String[] args) {
Scanner cin= new Scanner(System.in);int a=cin.nextInt();int b=cin.nextInt();int c=cin.nextInt();if(a+b>c && a+c>b && b+c>a)System.out.printf("Yes");elseSystem.out.printf("No");}
}