Files
Story-With-Thanh/J01010 - CẮT ĐÔI.java
T
2022-12-15 23:51:04 +07:00

38 lines
943 B
Java

import java.util.Scanner;
public class Main {
static char convert(char x) {
if (x == '0')
return '0';
if (x == '1')
return '1';
if (x == '8')
return '0';
if (x == '9')
return '0';
return '2';
}
static String ans(char[] a) {
for (int i = 0; i < a.length; i++) {
a[i] = convert(a[i]);
if (a[i] == '2')
return "INVALID";
}
String s = new String(a);
s=s.replaceFirst("^0+", "");
if ("".equals(s)) return "INVALID";
return s;
}
public static void main(String[] args) {
Scanner reader = new Scanner(System.in);
int t = Integer.parseInt(reader.nextLine());
for (int i = 0; i < t; i++) {
String s = reader.nextLine();
System.out.println(ans(s.toCharArray()));
}
reader.close();
}
}