PAT1006

代码如下：

import java.util.Scanner;

public class Main {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner input = new Scanner(System.in);
        String num = input.next();
        if(num.length()==1){
            for(int i = 1;i<=Integer.valueOf(num);i++){
                System.out.print(i);
            }
        }else if(num.length()==2){
            int ten = num.charAt(0)-'0';
            int one = num.charAt(1)-'0';
            for(int i = 0;i<ten;i++){
                System.out.print('S');
            }
            for(int i = 1;i<=one;i++){
                System.out.print(i);
            }
        }else{
            int bai = num.charAt(0)-'0';
            int ten = num.charAt(1)-'0';
            int one = num.charAt(2)-'0';
            for(int i = 0;i<bai;i++){
                System.out.print('B');
            }
            for(int i = 0;i<ten;i++){
                System.out.print('S');
            }
            for(int i = 1;i<=one;i++){
                System.out.print(i);
            }
        }
        
    }
}