public class Angou{
public static void main(String []arg){
int key=Integer.parseInt(arg[1],8);
int []angti=new int[arg[0].length()];
String angou=toAngou(arg[0],key,angti);
String fukugo=toFukugo(angti,key);
}
public static String toAngou(String str,int key,int 【angti】){
char []angmoji=【str】;
for(int i=0;i<angmoji.length;i++){
angti[i]=【angmoji[i]】+key;
angmoji[i]=(char)angti[i];
}
return new 【angmoji】;
}
public static String toFukugou(int 【angti】,int key){
char []fukumoji=【】;
for(int i=0;i<fukumoji.length;i++){
fukumoji[i]=(char)【angti】-key);
}
return new 【】;
}
}