#include <bits/stdc++.h>
using namespace std;
/*{{{*/  //template
#define rep(i,n) for(int i=0;i<(int)(n);i++)
constexpr int INF = numeric_limits<int>::max()/2;
constexpr long long LINF = numeric_limits<long long>::max()/3;
#define mp make_pair
#define pb push_back
#define eb emplace_back
#define fi first
#define se second
#define all(v) (v).begin(),(v).end()
#define sz(x) (int)(x).size()
#define debug(x) cerr<<#x<<":"<<x<<endl
#define debug2(x,y) cerr<<#x<<","<<#y":"<<x<<","<<y<<endl
//struct fin{ fin(){ cin.tie(0); ios::sync_with_stdio(false); } } fin_;
struct Double{ double d; explicit Double(double x) : d(x){} };
ostream& operator<<(ostream& os,const Double x){ os << fixed << setprecision(20) << x.d; return os; }
template<typename T> ostream& operator<<(ostream& os,const vector<T>& vec){ os << "["; for(const auto& v : vec){ os << v << ","; } os << "]"; return os; }
template<typename T,typename U> ostream& operator<<(ostream& os,const pair<T,U>& p){ os << "(" << p.first << ","<< p.second <<")"; return os; }
template<typename T> ostream& operator<<(ostream& os,const set<T>& st){ os<<"{"; for(T v:st) os<<v<<","; os <<"}"; return os; }
template<typename T,typename U> inline void chmax(T &x,U y){ if(y>x) x = y; }
template<typename T,typename U> inline void chmin(T &x,U y){ if(y<x) x = y; }
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef vector<int> vi;
typedef vector<vi> vvi;
ll gcd(ll a,ll b){ if(b==0) return a; else return gcd(b,a%b); }
//constexpr double eps = 1e-14; 
constexpr double eps = 1e-10; 
constexpr ll mod = 1e9+7;
const int dx[]={1,0,-1,0} ,dy[] = {0,1,0,-1};
/*}}}*/

using P = pair<ll,ll>;

constexpr int m = 31;
int cx,cy;

template<int E, long long... A>
struct Seq{
    static constexpr auto value = Seq<E-1,(1ll<<E),A...>::value;
};

template<long long... A>
struct Seq<0,A...>{
    static constexpr long long value[] = {1ll,A...};
};

template<long long... A>
constexpr long long Seq<0,A...>::value[];

constexpr auto *d = Seq<m>::value;

string calc(ll u,ll v){
    string ret;
    for(int i=m-1;i>=0;i--){
        if(u >= cx and v >= cy){
            u -= d[i];
            v -= d[i];
            ret.push_back('R');
        }else if(u >= cx and v < cy){
            u -= d[i];
            v += d[i];
            ret.push_back('U');
        }else if(u < cx and v < cy){
            u += d[i];
            v += d[i];
            ret.push_back('L');
        }else{
            u += d[i];
            v -= d[i];
            ret.push_back('D');
        }
    }
    reverse(all(ret));
    return ret;
}

int main(){
    int N; cin >> N;
    vector<ll> X(N),Y(N);
    rep(i,N) cin >> X[i] >> Y[i];

    rep(i,N) if(i){
        if(abs(X[i]+Y[i])%2 != abs(X[0]+Y[0])%2){
            cout << -1 << endl;
            return 0;
        }
    }

    vector<ll> u(N),v(N);
    rep(i,N){
        u[i] = X[i] + Y[i];
        v[i] = X[i] - Y[i];
    }

    cx = 0;
    cy = 0;
    if((X[0]+Y[0])%2==0){
        cx++;
        cy++;
    }

    cout << m + cx << endl;
    for(int i=0;i<m;i++){
        if(i) cout << " ";
        cout << d[i];
    }
    if(cx){
        cout << " " << 1;
    }
    cout << endl;

    rep(i,N){
        string s = calc(u[i],v[i]);
        ll x=0,y=0;
        for(int j=0;j<m;j++){
            if(s[j] == 'L') x -= d[j];
            else if(s[j] == 'R') x += d[j];
            else if(s[j] == 'U') y += d[j];
            else if(s[j] == 'D') y -= d[j];
        }
        if(cx){
            x += 1;
            s += "R";
        }
        cout << s << endl;
    }
}


Measured memory_bytes: 256