User Maillew

    static class Pair implements Comparable<Pair>{
    int x;
    int y;

    Pair (int x0, int y0){
        x=x0;
        y=y0;

    }
    public int compareTo(Pair e){
        if (y>e.y){
            return 1;
        }
        else if (y<e.y){
            return -1;
        }
        else return 0;
    }
}

    static BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
static PrintWriter pr = new PrintWriter(new BufferedWriter(new OutputStreamWriter(System.out)));
static StringTokenizer st;



public static void main(String[] args) throws IOException {



}


static String read () throws IOException {
    while (st == null || !st.hasMoreTokens())
       st = new StringTokenizer(br.readLine().trim());
    return st.nextToken();
}
//© Maillew DMOJ
static long readLong () throws IOException {
    return Long.parseLong(read());
}
static int readInt () throws IOException {
    return Integer.parseInt(read());
}
static double readDouble () throws IOException {
    return Double.parseDouble(read());
}
static char readChar () throws IOException {
    return read().charAt(0);
}
static String readLine () throws IOException {
    return br.readLine().trim();
}
    /*
    Integer overflow, array bounds?
    Special cases (n=1? n=0?)

    Did you read the bounds?
    Did you make typos?
    Are array sizes proper (scaled by proper constant, for example 2* for segment 
    tree)
    DS reset properly between test cases?
    Floating points errors?
    Do smth instead of nothing and stay organized
    Write stuff down
 */

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