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();
    char[] c = new char[s.length()];
    int count1 = 0;
    int count2 = 0;

    for (int i = 0; i < s.length(); i++) {
      c[i] = s.charAt(i);
    }

    if (c[0] != 'A') {
      System.out.println("WA");
      return;
    }

    for (int i = 2; i < c.length-1; i++) {
      if (c[i] == 'C') {
        count1++;
      }
    }

    for (int i = 0; i < c.length; i++) {
      if (c[i] >= 'A' && c[i] <= 'Z'){
        count2++;
      }
    }


    if (count1 == 1 && count2 == 2) {
      System.out.println("AC");
    } else {
      System.out.println("WA");
    }
  }
}
