//By Abhinav
//Code your heart out
#include<bits/stdtr1c++.h>
using namespace std;
typedef long long int ll;
#define mem(x,val)          memset(x,val,sizeof(x))
#define SupHomey            ios_base::sync_with_stdio(false),cin.tie(NULL)
#define FR(i,a,b)           for(ll i=a;i<b;i++)
#define pb(a)               push_back(a)
#define mp(a,b)             make_pair(a,b)
#define gc  getchar
#define pc  putchar
const ll maxmod=1e9+7;

bool visit[202][202];
int trace[202][202];
int cnt[202][202];
int x[6]={-2,-2,0,2,2,0};
int y[6]={-1,1,2,1,-1,-2};

void BFS(int x1,int y1,int x2,int y2,int n){

queue<pair<int,int> >qu;
qu.push(mp(x1,y1));
visit[x1][y1]=true;
while(!qu.empty()){

    int lim=qu.size();
    while(lim--){
        pair<int,int>curr = qu.front();
        qu.pop();
        for(int i=0;i<6;i++){
            if(curr.first+x[i]<n and curr.first+x[i]>=0 and curr.second+y[i]<n and curr.second+y[i]>=0 and !visit[curr.first+x[i]][curr.second+y[i]])
                 qu.push(mp(curr.first+x[i],curr.second+y[i])),visit[curr.first+x[i]][curr.second+y[i]]=true,trace[curr.first+x[i]][curr.second+y[i]]=i,cnt[curr.first+x[i]][curr.second+y[i]]=cnt[curr.first][curr.second]+1;
        }
        if(visit[x2][y2])
            return;
    }

}

}

int main(){
SupHomey;
 int n;
  cin>>n;
  FR(i,0,202)
    FR(j,0,202)
      visit[i][j]=false,trace[i][j]=-1,cnt[i][j]=0;
  map<int,string>mymap;
  mymap[0]="UL";
  mymap[1]="UR";
  mymap[2]="R";
  mymap[3]="LR";
  mymap[4]="LL";
  mymap[5]="L";
  int startx,starty,endx,endy;
   cin>>startx>>starty>>endx>>endy;
  BFS(startx,starty,endx,endy,n);
  if(trace[endx][endy]==-1)
    cout<<"Impossible"<<endl;
  else{
    cout<<cnt[endx][endy]<<endl;
    int tempx=endx,tempy=endy,cntn=0;
    string ans="";
    while(trace[tempx][tempy]!=-1){
      int c=trace[tempx][tempy];
      string s=mymap[c];
      ans=s+" "+ans;
      if(s=="UL")
         tempx=tempx+2,tempy=tempy+1;
      else if(s=="UR")
         tempx=tempx+2,tempy=tempy-1;
      else if(s=="R")
         tempy=tempy-2;
      else if(s=="LR")
         tempx=tempx-2,tempy=tempy-1;
      else if(s=="LL")
         tempx=tempx-2,tempy=tempy+1;
      else
        tempy=tempy+2;
    }
    cout<<ans<<endl;
  }
}