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 x;
cin>>x;
int count=0,small=0;


for(int i=2;i<x.length()-1;i++){
if(x[i]=='C'){count++;}
}
for(int i=0;i<x.length();i++){

    if(x[i]>96&&x[i]<123){small++;}
}
if(x[0]=='A'&&(small==x.length()-2)&&count==1){cout<<"AC"<<endl;}


else{cout<<"WA"<<endl;}

    return 0;
}
