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>
using namespace std;
int main () {
    int cnt=0;
    string N;
    cin >> N;
    if (N[0]=='A')
        cnt++;
    for (int i=1;i<N.size();i++){
        if (i!=1 && i!=N.size()-1 && N[i]=='C')
            cnt+=2;
        else if (N[i]-96<0)
            cnt+=100;
    }
    cnt==3 ? cout << "AC" : cout << "WA";
    return 0;
}