import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.HashSet;
import java.util.StringTokenizer;
import java.io.Writer;
import java.io.OutputStreamWriter;
import java.io.BufferedReader;
import java.io.InputStream;

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 *
 * @author lewin
 */
public class atok_lewin {
    public static void main(String[] args) {
        InputStream inputStream = System.in;
        OutputStream outputStream = System.out;
        InputReader2 in = new InputReader2(inputStream);
        OutputWriter out = new OutputWriter(outputStream);
        AnotherTokenGame2 solver = new AnotherTokenGame2();
        solver.solve(1, in, out);
        out.close();
    }

    static class AnotherTokenGame2 {
        int n = 301;
        int[][] tab;

        void makeTable() {
            tab = new int[n][n];
            for (int i = 0; i < n; i++) {
                for (int j = 0; j < n; j++) {
                    if (Math.abs(i - j) <= 1) tab[i][j] = -1;
                    else {
                        HashSet<Integer> sn = new HashSet<>();
                        for (int k = 0; k < i; k++) sn.add(tab[k][j]);
                        for (int k = 0; k < j; k++) sn.add(tab[i][k]);
                        while (sn.contains(tab[i][j])) tab[i][j]++;
                    }
                }
            }
        }

        boolean win(int xi, int xj, int yi, int yj) {
            return (Math.abs(xi - yi) + Math.abs(xj - yj) > 1 && (tab[xi][yi] == -1 || tab[xj][yj] == -1 || tab[xi][yi] != tab[xj][yj]));
        }

        public void solve(int testNumber, InputReader2 in, OutputWriter out) {
            int t = in.nextInt();
            makeTable();
            while (t-- > 0) {
                int a = in.nextInt()-1, b = in.nextInt()-1, c = in.nextInt()-1, d = in.nextInt()-1;
                int win = 0;
                for (int g = a - 1; g >= 0 && (g != c || b != d); g--) if (!win(g, b, c, d)) win++;
                for (int g = b - 1; g >= 0 && (a != c || g != d); g--) if (!win(a, g, c, d)) win++;
                for (int g = c - 1; g >= 0 && (a != g || b != d); g--) if (!win(a, b, g, d)) win++;
                for (int g = d - 1; g >= 0 && (a != c || b != g); g--) if (!win(a, b, c, g)) win++;
                out.println(win);
            }
        }

    }

    static class InputReader2 {
        private BufferedReader in;
        private StringTokenizer st;

        public InputReader2(InputStream stream) {
            in = new BufferedReader(new InputStreamReader(stream));
            st = null;
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }

        public String next() {
            while (st == null || !st.hasMoreTokens()) {
                try {
                    st = new StringTokenizer(in.readLine());
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
            return st.nextToken();
        }

    }

    static class OutputWriter {
        private final PrintWriter writer;

        public OutputWriter(OutputStream outputStream) {
            writer = new PrintWriter(new BufferedWriter(new OutputStreamWriter(outputStream)));
        }

        public OutputWriter(Writer writer) {
            this.writer = new PrintWriter(writer);
        }

        public void close() {
            writer.close();
        }

        public void println(int i) {
            writer.println(i);
        }

    }
}