无线电台的RS制信号报告是由三两个部分组成的：
R(Readability) 信号可辨度即清晰度.
S(Strength) 信号强度即大小.
其中R位于报告第一位，共分5级，用1—5数字表示.
1---Unreadable
2---Barely readable, occasional words distinguishable
3---Readable with considerable difficulty
4---Readable with practically no difficulty
5---Perfectly readable
报告第二位是S，共分九个级别，用1—9中的一位数字表示
1---Faint signals, barely perceptible
2---Very weak signals
3---Weak signals
4---Fair signals
5---Fairly good signals
6---Good signals
7---Moderately strong signals
8---Strong signals
9---Extremely strong signals
现在，你的程序要读入一个信号报告的数字，然后输出对应的含义。如读到59，则输出：
Extremely strong signals, perfectly readable.
输入格式:
一个整数，信号报告。整数的十位部分表示可辨度，个位部分表示强度。输入的整数范围是[11,59]内有效的数字，这个范围外的数字不可能出现在测试数据中。
输出格式：
一句话，表示这个信号报告的意义。按照题目中的文字，先输出表示强度的文字，跟上逗号和空格，然后是表示可辨度的文字，跟上句号。注意可辨度的句子的第一个字母是小写的。注意这里的标点符号都是英文的。
输入样例：
33
输出样例：
Weak signals, readable with considerable difficulty.
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
//这里必须注释掉否则提交不过去
//System.out.println("输入信号");
//输入信号
int a = in.nextInt();
int readability = a / 10;
int strength = a - readability * 10;
String s = "";
String r = "";
//s switch
switch(strength) {
case 1:
s = "Faint signals, barely perceptible";
break;
case 2:
s = "Very weak signals";
break;
case 3:
s = "Weak signals";
break;
case 4:
s = "Fair signals";
break;
case 5:
s = "Fairly good signals";
break;
case 6:
s = "Good signals";
break;
case 7:
s = "Moderately strong signals";
break;
case 8:
s = "Strong signals";
break;
case 9:
s = "Extremely strong signals";
break;
default:
break;
}
//r switch
switch(readability) {
case 1:
r = "unreadable";
break;
case 2:
r = "barely readable, occasional words distinguishable";
break;
case 3:
r = "readable with considerable difficulty";
break;
case 4:
r = "readable with practically no difficulty";
break;
case 5:
r = "perfectly readable";
break;
}
//输出
System.out.println(s+","+" "+r+".");
}
}