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 "bits/stdc++.h"
using namespace std;

int main() {
string s;
cin >>s;
int  che =-1;
int big=0;
for(int i=0;i<s.size();i++){
    char z =toupper(s.at(i));
    if(s.at(i)==z)big++;
}
for(int i=2;i<s.size()-1;i++){
    if(s.at(i)=='C')che++;
}
if(s.at(0)=='A'&&che==0&&big==2){
    cout <<"AC"<<endl;
}
else{
    cout <<"WA"<<endl;
}
}