Scanner kb = new Scanner(System.in);
System.out.print("a=");
a= kb.nextInt();
Scanner input = new Scanner(System.in);
System.out.print("a=");
a= input.nextInt();
System.out.print("a=");
a= kb.nextInt();
Scanner input = new Scanner(System.in);
System.out.print("a=");
a= input.nextInt();
