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.*;

class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        String s = sc.nextLine();
      	int cnt = 0;
        int cnt2 = 0;
      
      if(s.charAt(0)=='A'){
      	for(int i = 2;i < s.length()-1;i++){
        	if(s.charAt(i)=='C'){cnt++;}
        }if(cnt==1){
          for(int i = 0;i < s.length();i++){
          	if(s.charAt(i)>='A'&&s.charAt(i)<='Z'){cnt2++;}
          }
        }
      }
      		if(cnt2==2){
            System.out.println("AC");
        	System.exit(0);
            }
      		System.out.println("WA");
        	System.exit(0);
      
      }
}