#include <iostream>
#include<bits/stdc++.h>
using namespace std;
struct p{int x,y,l;string m;};
string t[202][202];
int main()
{
    ios_base::sync_with_stdio(false);
    int n;
    cin >> n;
    int x,y,xf,yf;
    cin >> x >> y >> xf >> yf;
    queue<p> q;
    q.push({x,y,0,"N"});
    int ans = -1;
    while(!q.empty()) {
        int xc = q.front().x;
        int yc = q.front().y;
        int lc = q.front().l;
        string mc = q.front().m;
        q.pop();
        if(xc > n-1 || yc > n-1 || xc < 0 || yc <0 ) continue;
        if(t[xc][yc] != "") continue;
        t[xc][yc] = mc;
        if(xc == xf && yc == yf) {
            ans = lc;
            break;
        }
        q.push({xc-2,yc-1,lc+1,"UL"});
        q.push({xc-2,yc+1,lc+1,"UR"});
        q.push({xc,yc+2,lc+1,"R"});
        q.push({xc+2,yc+1,lc+1,"LR"});
        q.push({xc+2,yc-1,lc+1,"LL"});
        q.push({xc,yc-2,lc+1,"L"});
    }
    if(ans !=-1) {
        cout << ans << endl;
        vector<string> s;
        while(t[xf][yf] !=  "N") {
            s.push_back(t[xf][yf]);
            if(t[xf][yf] == "UL") xf+=2,yf+=1;
            else if(t[xf][yf] == "UR") xf+=2,yf-=1;
            else if(t[xf][yf] == "R") yf-=2;
            else if(t[xf][yf] == "L") yf+=2;
            else if(t[xf][yf] == "LL") xf-=2,yf+=1;
            else if(t[xf][yf] == "LR") xf-=2,yf-=1;
        }
        for(int i =s.size()-1;i>-1;i--) cout << s[i] << " ";
    }
    else cout << "Impossible";
    return 0;
}