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>
 
using namespace std;
 
int main()
{
string s;
cin>>s;
int x=0 , y=0 , z=0 ;
if (s[0] == 'A'){
    x++;
}
for (int i = 2 ; i < s.size()-1; i++){
    if (s[i]=='C')
        y++;
}
for (int i=0 ;i <s.size(); i++){
    if(s[i]>=65&&s[i]<=90){
        z++;
    }
}
if(x==1 && y==1 && z==2)
    cout<<"AC";
else
    cout<<"WA";
 
 
}