public class Recursion {

    public static void main(String args[]) throws NumberFormatException, IOException{

        System.out.println("请输入一个数");

            BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

            int num1=Integer.parseInt(br.readLine());

            int value=getRecursion(num1);

            System.out.println(num1+"的阶乘是"+value);

            int result1=getAdd(num1);

            System.out.println("结果是"+result1);

    }

    public static int getRecursion(int num){

        if(num==1){

            return 1;

        }

        else{

            return num*getRecursion((num-1));

        }

    }

    public static int getAdd(int res){

        int result=0;

        for(int i=1;i<=res;i++){

            result+=getRecursion(i);

        }

        return result;

    }

}