import com.sun.org.apache.regexp.internal.RE; import java.io.*; import java.nio.file.ClosedWatchServiceException; import java.nio.file.OpenOption; import java.security.SecureRandom; import java.util.*; public class Main { public static void main(String[] args) throws FileNotFoundException { ConsoleIO io = new ConsoleIO(new InputStreamReader(System.in), new PrintWriter(System.out)); //String test = "C-large"; //ConsoleIO io = new ConsoleIO(new FileReader("D:\\Dropbox\\code\\practice\\jb\\src\\" + test + ".in"), new PrintWriter(new File("D:\\Dropbox\\code\\practice\\jb\\src\\" + test + "-out.txt"))); new Main(io).solve(); io.close(); } ConsoleIO io; Main(ConsoleIO io) { this.io = io; } List> gr = new ArrayList<>(); long MOD = 1_000_000_007; public void solve() { n = io.ri(); int r1 = io.ri(), c1 = io.ri(); r2 = io.ri(); c2 = io.ri(); if(Math.abs(r1-r2)%2==1 || Math.abs(c1-c2)%2 != Math.abs(r1-r2)%4/2){ io.writeLine("Impossible"); return; } go(r1,c1); io.writeLine(res.substring(0, res.length()-1)); } int r2,c2; String res=""; int n; void go(int r, int c) { if (r == r2 && c == c2) return; if (r2 < r) { if (c2 <= c) { res += "UL "; r -= 2; c--; } else { res += "UR "; r -= 2; c++; } } else if (r2 == r) { if (c2 < c) { res += "L "; c-=2; } else { res += "R "; c+=2; } } else { if (c2 > c + 1) { res += "R "; c+=2; } else if (c2 >= c) { res += "LR "; r += 2; c++; } else { res += "LL "; r += 2; c--; } } go(r, c); } } class ConsoleIO { BufferedReader br; PrintWriter out; public ConsoleIO(Reader reader, PrintWriter writer){br = new BufferedReader(reader);out = writer;} public void flush(){this.out.flush();} public void close(){this.out.close();} public void writeLine(String s) {this.out.println(s);} public void writeInt(int a) {this.out.print(a);this.out.print(' ');} public void writeWord(String s){ this.out.print(s); } public void writeIntArray(int[] a, int k, String separator) { StringBuilder sb = new StringBuilder(); for (int i = 0; i < k; i++) { if (i > 0) sb.append(separator); sb.append(a[i]); } this.writeLine(sb.toString()); } public int read(char[] buf, int len){try {return br.read(buf,0,len);}catch (Exception ex){ return -1; }} public String readLine() {try {return br.readLine();}catch (Exception ex){ return "";}} public long[] readLongArray() { String[]n=this.readLine().trim().split("\\s+");long[]r=new long[n.length]; for(int i=0;i='0' && all[i]<='9'){ cur = cur*10+all[i]-'0'; have = true; }else if(all[i]=='-') { neg = true; } else if(have){ res[k++] = neg?-cur:cur; cur = 0; have = false; neg = false; } } if(have)res[k++] = neg?-cur:cur; return res; } public int ri() { try { int r = 0; boolean start = false; boolean neg = false; while (true) { int c = br.read(); if (c >= '0' && c <= '9') { r = r * 10 + c - '0'; start = true; } else if (!start && c == '-') { start = true; neg = true; } else if (start || c == -1) return neg ? -r : r; } } catch (Exception ex) { return -1; } } public long readLong() { try { long r = 0; boolean start = false; boolean neg = false; while (true) { int c = br.read(); if (c >= '0' && c <= '9') { r = r * 10 + c - '0'; start = true; } else if (!start && c == '-') { start = true; neg = true; } else if (start || c == -1) return neg ? -r : r; } } catch (Exception ex) { return -1; } } public String readWord() { try { boolean start = false; StringBuilder sb = new StringBuilder(); while (true) { int c = br.read(); if (c!= ' ' && c!= '\r' && c!='\n' && c!='\t') { sb.append((char)c); start = true; } else if (start || c == -1) return sb.toString(); } } catch (Exception ex) { return ""; } } public char readSymbol() { try { while (true) { int c = br.read(); if (c != ' ' && c != '\r' && c != '\n' && c != '\t') { return (char) c; } } } catch (Exception ex) { return 0; } } //public char readChar(){try {return (char)br.read();}catch (Exception ex){ return 0; }} } class Pair { public Pair(int a, int b) {this.a = a;this.b = b;} public int a; public int b; } class PairLL { public PairLL(long a, long b) {this.a = a;this.b = b;} public long a; public long b; } class Triple { public Triple(int a, int b, int c) {this.a = a;this.b = b;this.c = c;} public int a; public int b; public int c; }