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();
        sc.close();

        int sum = 0;
        if(S.charAt(0) == 'A')
            sum++;
        int count = 0;
        for(int i = 2; i < S.length()-1; i++){
            if(S.charAt(i) == 'C'){
                count++;
            }
        }
        if(count == 1)
                sum++;
        int cnt = 0;
        for(int i = 1; i < S.length(); i++){
            if(S.charAt(i) - 'a' >= 0 && S.charAt(i) - 'a' <= 25){
                cnt++;
            }
        }
        if(cnt==S.length()-2)
                sum++;
        if(sum == 3)
            System.out.println("AC");
        else
            System.out.println("WA");
        
    }
}