#include <bits/stdc++.h>
using namespace std;
#define mp make_pair
#define pb push_back

int main() {
    int n;
    cin >> n;
    int a[n][n];
    bool visit[n][n];
    memset(visit,0,sizeof visit);
    int sx,sy,dx,dy;
    cin>>sx>>sy>>dx>>dy;
    string str[n][n];
    for(int i=0;i<n;i++)for(int j=0;j<n;j++)str[i][j]="jx";
    a[sx][sy]=0;
    visit[sx][sy]=1;
    queue<pair<int,int>> Q;
    Q.push(mp(sx,sy));
    
    while(!Q.empty() && visit[dx][dy]==0){
        int x=Q.front().first;
        int y=Q.front().second;
        
        Q.pop();
        int t1,t2;
        
        t1=x-2,t2=y-1;
        
        if(t1>=0 && t1<n && t2>=0 && t2<n && visit[t1][t2]==0){
            visit[t1][t2]=1;
            a[t1][t2]=a[x][y]+1;
            Q.push(mp(t1,t2));
            str[t1][t2]="UL";
        }
        
        t1=x-2,t2=y+1;
        
        if(t1>=0 && t1<n && t2>=0 && t2<n && visit[t1][t2]==0){
            visit[t1][t2]=1;
            a[t1][t2]=a[x][y]+1;
            Q.push(mp(t1,t2));
            str[t1][t2]="UR";
        }
        
        t1=x,t2=y+2;
        
        if(t1>=0 && t1<n && t2>=0 && t2<n && visit[t1][t2]==0){
            visit[t1][t2]=1;
            a[t1][t2]=a[x][y]+1;
            Q.push(mp(t1,t2));
            str[t1][t2]='R';
        }
        
        t1=x+2,t2=y+1;
        
        if(t1>=0 && t1<n && t2>=0 && t2<n && visit[t1][t2]==0){
            visit[t1][t2]=1;
            a[t1][t2]=a[x][y]+1;
            Q.push(mp(t1,t2));
            str[t1][t2]="LR";
        }
        
        t1=x+2,t2=y-1;
        
        if(t1>=0 && t1<n && t2>=0 && t2<n && visit[t1][t2]==0){
            visit[t1][t2]=1;
            a[t1][t2]=a[x][y]+1;
            Q.push(mp(t1,t2));
            str[t1][t2]="LL";
        }
        
        
        
        t1=x,t2=y-2;
        
        if(t1>=0 && t1<n && t2>=0 && t2<n && visit[t1][t2]==0){
            visit[t1][t2]=1;
            a[t1][t2]=a[x][y]+1;
            Q.push(mp(t1,t2));
            str[t1][t2]='L';
        }
     
    }
    
    if(visit[dx][dy]==0){
        cout<<"Impossible"<<endl;
        
    }
    else{
    vector<string> ans;
    int c1=dx,c2=dy;
    while(!(dx==sx && dy==sy)){
        ans.pb(str[dx][dy]);
        if(str[dx][dy]=="R"){dy-=2;}
        else if(str[dx][dy]=="L"){dy+=2;}
        else if(str[dx][dy]=="UL"){dx+=2;dy+=1;}
        else if(str[dx][dy]=="UR"){dx+=2;dy-=1;}
        else if(str[dx][dy]=="LL"){dx-=2;dy+=1;}
        else if(str[dx][dy]=="LR"){dx-=2;dy-=1;}
    }
    
 /*   for(int i=0;i<n;i++){
        for(int j=0;j<n;j++)cout<<str[i][j]<<" ";
        cout<<endl;
    }*/
    
    //ans.reverse();
    
   
    cout<<a[c1][c2]<<endl;
    
    
    for(int i=ans.size()-1;i>=0;i--)cout<<ans[i]<<" ";
    }
    return 0;
}