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2010_J3.java
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2010_J3.java
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import java.util.*;
public class Main {
static int a, b;
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
String input = in.nextLine();
String x = "";
while (!input.equals("7")){
switch(input.charAt(0)){
case '1':
x = input.charAt(2) + "";
int n = Integer.parseInt(input.substring(4));
if (x.equals("A")) a = n;
else b = n;
break;
case '2':
x = input.charAt(2) + "";
if (x.equals("A")) System.out.println(a);
else System.out.println(b);
break;
default: method(input);
}
input = in.nextLine();
}
}
public static void method(String input){
int ord = Integer.parseInt(input.substring(0, 1));
char x = input.charAt(2);
char y = input.charAt(4);
if (x == 'A'){
if (y == 'A'){
switch(ord){
case 3: a += a; break;
case 4: a *= a; break;
case 5: a -= a; break;
case 6: a /= a; break;
}
}else{
switch(ord){
case 3: a += b; break;
case 4: a *= b; break;
case 5: a -= b; break;
case 6: a /= b; break;
}
}
}else{
if (y == 'B'){
switch(ord){
case 3: b += b; break;
case 4: b *= b; break;
case 5: b -= b; break;
case 6: b /= b; break;
}
}else{
switch(ord){
case 3: b += a; break;
case 4: b *= a; break;
case 5: b -= a; break;
case 6: b /= a; break;
}
}
}
}
}