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import java.util.Arrays;
import java.util.Random;
import java.util.Scanner;
class J1Lesson3 {
public static void main(String[] args) {
int[] arr = {6, 4, 9, 2, 3, 7, 0};
System.out.println(Arrays.toString(arr));
Arrays.sort(arr);
System.out.println(Arrays.toString(arr));
System.out.println(arr[0] + " - " + arr[arr.length - 1]);
Random random = new Random();
for (int i = 0; i < 20; i++) {
System.out.print(random.nextInt(25) + " ");
}
System.out.println("\nEnter a operation b:");
Scanner read = new Scanner(System.in);
int a = read.nextInt();
String s = read.next();
int b = read.nextInt();
switch (s) {
case "+": System.out.println("= " + (a + b));
break;
case "-": System.out.println("= " + (a - b));
break;
}
}
}