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();
    int n = s.length();
    char[] array = s.toCharArray();
    boolean flag = false;

    if(array[0]=='A'){
      int large_count = 0;
      int small_count = 0;
      for(int i =2; i<n-1;i++){
        if(array[i]=='C'){large_count += 1;}
      }
      if(large_count ==1){
        for(int j=0; j<n;j++){
          if(Character.isLowerCase(array[j])){
            small_count += 1;
          }
        }
        if(small_count == s.length()-2){
          flag = true;
        }
      }

    }

    if(flag){System.out.println("AC");}else{
      System.out.println("WA");
    }
  }
}