//author: camypaper
using System;
using System.Linq;
using System.Collections.Generic;
using System.Text.RegularExpressions;
using Debug = System.Diagnostics.Debug;
using SB = System.Text.StringBuilder;
using System.Numerics;
using Point = System.Numerics.Complex;
using static System.Math;
using C = System.Int32;
using System.Runtime.CompilerServices;

namespace Program {
    public class Solver {
        Random rnd = new Random(0);
        public void Solve() {
            var n = ri;
            var parity = 0;
            var P = Enumerate(n, x => new long[2]);

            for (int i = 0; i < n; i++) {
                var u = rl;
                var v = rl;
                var p = (Abs(u) + Abs(v)) % 2;
                parity |= 1 << (int)p;
                P[i][0] = u + v;
                P[i][1] = u - v;
            }
            if (parity == 3) {
                Console.WriteLine(-1);
                return;
            }
            Debug.WriteLine(parity);
            const int M = 36;
            Console.WriteLine(M);
            var a = Enumerate(M, x => 1L << x);
            if (parity == 1) a[M - 1] = 1;
            Array.Sort(a);
            Console.WriteLine(a.AsJoinedString());
            const string pat = "RLDU";
            var dx = new int[] { -1, 1, 1, -1 };
            var dy = new int[] { -1, 1, -1, 1 };
            foreach (var p in P) {
                var x = p[0];
                var y = p[1];
                var ord = new List<char>();
                for (int i = M - 1; i >= 0; i--) {
                    var d = INF;
                    var id = -1;
                    for (int k = 0; k < 4; k++) {
                        var nx = x + dx[k] * a[i];
                        var ny = y + dy[k] * a[i];
                        var dd = Abs(nx) + Abs(ny);
                        if (d > dd) {
                            d = dd;
                            id = k;
                        }
                    }
                    x += dx[id] * a[i];
                    y += dy[id] * a[i];
                    ord.Add(pat[id]);
                }
                ord.Reverse();
                Debug.WriteLine($"{x} {y}");
                Console.WriteLine(ord.AsString());

                for (int i = 0; i < M; i++) {
                    if (ord[i] == 'R') x += a[i];
                    if (ord[i] == 'L') x -= a[i];
                    if (ord[i] == 'U') y += a[i];
                    if (ord[i] == 'D') y -= a[i];
                }
                Debug.WriteLine($"{x} {y}");
            }

        }

        const long INF = 1L << 60;
        int ri => sc.Integer();
        long rl => sc.Long();
        double rd => sc.Double();
        string rs => sc.Scan();
        public IO.StreamScanner sc = new IO.StreamScanner(Console.OpenStandardInput());

        static IEnumerable<int> Rep(int n) => Enumerable.Range(0, n);
        static IEnumerable<int> RRep(int n) => Enumerable.Range(0, n).Reverse();
        static T[] Enumerate<T>(int n, Func<int, T> f) {
            var a = new T[n];
            for (int i = 0; i < a.Length; ++i) a[i] = f(i);
            return a;
        }
        static public void Swap<T>(ref T a, ref T b) { var tmp = a; a = b; b = tmp; }
    }
}

#region main
static class Ex {
    static public string AsString(this IEnumerable<char> ie) { return new string(ie.ToArray()); }
    static public string AsJoinedString<T>(this IEnumerable<T> ie, string st = " ") {
        return string.Join(st, ie);
    }
    static public void Main() {
        Console.SetOut(new Program.IO.Printer(Console.OpenStandardOutput()) { AutoFlush = false });
        var solver = new Program.Solver();
        solver.Solve();
        Console.Out.Flush();
    }
}
#endregion
#region Ex
namespace Program.IO {
    using System.IO;
    using System.Text;
    using System.Globalization;

    public class Printer : StreamWriter {
        public override IFormatProvider FormatProvider => CultureInfo.InvariantCulture;
        public Printer(Stream stream) : base(stream, new UTF8Encoding(false, true)) { }
    }

    public class StreamScanner {
        public StreamScanner(Stream stream) { str = stream; }

        public readonly Stream str;
        private readonly byte[] buf = new byte[1024];
        private int len, ptr;
        public bool isEof = false;

        private byte read() {
            if (isEof) return 0;
            if (ptr >= len) {
                ptr = 0;
                if ((len = str.Read(buf, 0, 1024)) <= 0) {
                    isEof = true;
                    return 0;
                }
            }
            return buf[ptr++];
        }

        public char Char() {
            byte b = 0;
            do b = read(); while ((b < 33 || 126 < b) && !isEof);
            return (char)b;
        }
        public string Scan() {
            var sb = new StringBuilder();
            for (var b = Char(); b >= 33 && b <= 126; b = (char)read()) sb.Append(b);
            return sb.ToString();
        }
        public string ScanLine() {
            var sb = new StringBuilder();
            for (var b = Char(); b != '\n' && b != 0; b = (char)read()) if (b != '\r') sb.Append(b);
            return sb.ToString();
        }
        public long Long() { return isEof ? long.MinValue : long.Parse(Scan()); }
        public int Integer() { return isEof ? int.MinValue : int.Parse(Scan()); }
        public double Double() { return isEof ? double.NaN : double.Parse(Scan(), CultureInfo.InvariantCulture); }
    }
}

#endregion

Measured memory_bytes: 13636