include<bits/stdc++.h>

using namespace std;

define FOR(i, a, b) for(int i = a; i <= b; ++i)

define F first

define S second

define pb push_back

define szz(a) int(a.size())

define pi pair<int, int>

define pii pair<int, pair<int, int>

//const N = 5e5 + 5, oo = 1e9 + 5, MOD = 1e5 + 7

int rd(int l, int r){ return l + rand() % (r - l + 1); }

void random(){ ofstream out("sown.inp"); int n = rd(1, 5000); out << n << " " << n + 1 << "\n"; FOR(i, 1, n){ int l = rd(1, 1000), r = rd(l, 1000); out << l << " " << r << "\n"; } }

void solve(){ srand(time(NULL)); random(); FOR(i, 1, 1000){ random();

    system("test.exe");
    system("bai4trau.exe");

    if(system("fc sown.out sown.ans")){
        cout << "WA"; return;
    }else cout << "AC\n";
}

}

signed main(){ // iosbase::syncwith_stdio(false); // cin.tie(false); cout.tie(false);

// freopen("sown.inp", "r", stdin); // freopen("sown.out", "w", stdout);

solve();

} //http://112.137.129.130/ //H1-024 //SS846770