#include <bits/stdc++.h>
using namespace std;
using ll=long long;
using ld=long double;
#define rep(i,n) for(auto i=0;i<n;i++)
#define repd(i,n) for(auto i=n-1;i>=0;i--)
#define rep1(i,n) for(auto i=1;i<=n;i++)
#define rep_lt(i,j,n) for(auto i=j;i<n;i++) //半開区間
void printd(ld x){cout<<fixed<<setprecision(16)<<x<<endl;}
void printd2(ld x,ld y){
  cout<<fixed<<setprecision(16)<<x<<' '<<y<<endl;
}
template<typename Vec>
void vcout(const Vec& vec){
  for(auto& v:vec) cout<<v<<' ';
  cout<<'\n';
}
template<typename Vec>
void vvcout(const Vec& vec){
  for(auto& v:vec){
    for(auto& k:v) cout<<k;
    cout<<'\n';
  }
}
template<typename T,typename U>
void chmax(T& a,const U& b){
  if(a<b) a=b;
}
template<typename T,typename U>
void chmin(T& a,const U& b) {
  if(a>b) a=b;
}
struct FastIO{
  FastIO(){
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
  }
} fastio;
void YN(bool state){cout<<(state?"Yes\n":"No\n");}
void CY(bool state){if(state)cout<<"Yes"<<endl,exit(0);}
void CN(bool state){if(state)cout<<"No"<<endl,exit(0);}
void Cm1(bool state){if(state)cout<<-1<<endl,exit(0);}
const ll INF=4e18;
#define all(p) p.begin(),p.end()
#define rall(p) p.rbegin(),p.rend()
#define fi first
#define se second
#include <atcoder/all>
using namespace atcoder;
using mint=modint998244353;
//using mint=modint1000000007;
using T=tuple<ll,ll,ll>;
using P=pair<ll,ll>;

//考察

int main(){
  ll n,t;
  cin>>n>>t;
  vector a(n,vector<ll>(n));
  rep(i,n)rep(j,n) cin>>a[i][j];

  ll s=0;
  ll ni=0,nj=0;
  vector<char> ans;

  //マス(i,j)に移動
  auto go=[&](ll i,ll j){
    while(ni<i) ans.push_back('D'),ni++;
    while(ni>i) ans.push_back('U'),ni--;
    while(nj<j) ans.push_back('R'),nj++;
    while(nj>j) ans.push_back('L'),nj--;
  };

  auto write=[&](ll i,ll j){
    go(i,j);
    ans.push_back('W');
    a[i][j]^=s;
  };

  auto copy=[&](ll i,ll j){
    go(i,j);
    ans.push_back('C');
    s^=a[i][j];
  };

  rep(i,n)rep(j,n) if(s<(s^a[i][j])) copy(i,j);

  repd(i,n)repd(j,n) if(a[i][j]<(a[i][j]^s)) write(i,j);
  for(char p:ans) cout<<p<<'\n';
  return 0;
}