Java 解法求助 请各位大佬指点

import java.util.Scanner;

public  class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        int b = sc.nextInt();
        int c = sc.nextInt();
        if(b > 0 && c > 0){
        System.out.println(100 * c + 10 * b + a);
        }else{
            System.out.println("0" + "0" + a);
        }
    }
}