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 c=0,a=0;
if(S[0]=='A')
{
    for(int i=2;i<S.length()-1;i++)
        {
    if(S[i]=='C')c++;
        }
    for(int i=1;i<S.length();i++){
            if(S[i]!='C')
                {
                    if(isupper(S[i]))a++;
                }
    }
}
if(c==1 && a==0)cout<<"AC";
else cout<<"WA";
return 0;

}
