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
#include <iostream>
#include <string>
#include <stdio.h>
#include <vector>

using namespace std;

signed main() {
   
   string s;
   cin>>s;
   long long j=0;
  long long k=0;
   if(s[0]=='A'){
      for(int i=1;i<s.size();i++){
         if(s[i]>='A'&&s[i]<='Z') j++;
        if(i>1&&i<s.size()-1&&s[i]=='C') k++;
      }
   }
   cout<<((j==1&&k==1)?"AC":"WA")<<endl;
}









