You are given a string S. Each character of S is uppercase or lowercase English letter. Determine if S satisfies all of the following conditions:

* The initial character of S is an uppercase `A`.
* There is exactly one occurrence of `C` between the third character from the beginning and the second to last character (inclusive).
* All letters except the `A` and `C` mentioned above are lowercase.

Constraints

* 4 ≤ |S| ≤ 10 (|S| is the length of the string S.)
* Each character of S is uppercase or lowercase English letter.

Input

Input is given from Standard Input in the following format:


S


Output

If S satisfies all of the conditions in the problem statement, print `AC`; otherwise, print `WA`.

Examples

Input

AtCoder


Output

AC


Input

ACoder


Output

WA


Input

AcycliC


Output

WA


Input

AtCoCo


Output

WA


Input

Atcoder


Output

WA
import java.util.*;
public class Main {
public static void main(String[] args){
Scanner sc = new Scanner(System.in);
String s=sc.next();
String t=s;
boolean f=false;
int count=0;
for(int i=0;i<s.length()-3;i++){if(s.charAt(i+2)=='C')count++;}
for(char i='A';i<='Z';i++){t=t.replaceAll(String.valueOf(i), "");}
if(s.charAt(0)=='A'){
    if(count==1){
        if(t.length()==s.length()-2){
        f=true;
        }
    }
}
if(f){System.out.println("AC");}else{System.out.println("WA");}
}}