Java :

import java.io.UnsupportedEncodingException;
import java.util.Scanner;
public class Main 
{
	public static void main(String[] args) throws UnsupportedEncodingException 
    {	
	int p[] = {0xB0C5,0xB2C1,0xB4EE,0xB6EA,0xB7A2,0xB8C1,0xB9FE,0xBBF7,0xBFA6,0xC0AC,0xC2E8,0xC4C3,0xC5B6,0xC5BE,0xC6DA,0xC8BB,0xC8F6,0xCBFA,0xCDDA,0xCEF4,0xD1B9,0xD4D1,0xFFFF};
    	String h="ABCDEFGHJKLMNOPQRSTWXYZ";
    	int i,j,k;
    	Scanner sc=new Scanner(System.in);
    	int n=Integer.parseInt(sc.nextLine());
    	for(k=0;k<n;k++)
    	{
    		String r="";
    		String s=sc.nextLine();
    		byte[] b=s.getBytes("GB2312"); 
    		for(i=0;i<b.length;i+=2)//针对每个汉字 
    		{
    			int t=(0xff00&b[i]<<8)+(0xff&b[i+1]);//位运算，把每个汉字转成整数
    			for(j=0;j<23;j++)
    			{
    				if(t<p[j])
    				{
    					r+=h.charAt(j);
    					break;
    				}
    			}
    		}
    		System.out.println(r);
    	}
    }
}