#include<cstdio>
#include<vector>
#include<queue>
#include<cstring>
#include<iostream>
#include<algorithm>
#include<ctime>
#include<random>
#include<assert.h>
#include<functional>
#define pb emplace_back
#define mp make_pair
#define fi first
#define se second
#define dbg(x) cerr<<"In Line "<< __LINE__<<" the "<<#x<<" = "<<x<<'\n'
#define dpi(x,y) cerr<<"In Line "<<__LINE__<<" the "<<#x<<" = "<<x<<" ; "<<"the "<<#y<<" = "<<y<<'\n'
#define DE(fmt,...) fprintf(stderr, "Line %d : " fmt "\n",__LINE__,##__VA_ARGS__)
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int>pii;
typedef pair<ll,int>pli;
typedef pair<ll,ll>pll;
typedef pair<int,ll>pil;
typedef vector<int>vi;
typedef vector<ll>vll;
typedef vector<pii>vpii;
typedef vector<pll>vpll;
template<typename T>T cmax(T &x, T y){return x=x>y?x:y;}
template<typename T>T cmin(T &x, T y){return x=x<y?x:y;}
template<typename T>
T &read(T &r){
	r=0;bool w=0;char ch=getchar();
	while(ch<'0'||ch>'9')w=ch=='-'?1:0,ch=getchar();
	while(ch>='0'&&ch<='9')r=r*10+(ch^48),ch=getchar();
	return r=w?-r:r;
}
template<typename T1,typename... T2>
void read(T1 &x,T2& ...y){read(x);read(y...);}
const int N=110;
const int M=1000010;
const int inf=0x7fffffff;
int n,m,t;
pii a[N],b[N];
int head[M],cur[M],ent;
struct Edge{
	int to,fl,nxt;
}e[M<<1];
inline void add(int u,int v,int w){
	e[++ent]={v,w,head[u]};head[u]=ent;
	e[++ent]={u,0,head[v]};head[v]=ent;
}
int in[N][N][N],out[N][N][N],ck[N];
pii pos[M];
int tot,S,T;
int dx[]={0,0,1,-1,0};
int dy[]={1,-1,0,0,0};
int dis[M];
int bfs(){
	for(int i=1;i<=tot;i++)cur[i]=head[i],dis[i]=inf;
	dis[S]=0;queue<int>q({S});
	while(!q.empty()){
		int x=q.front();q.pop();
		for(int i=head[x];i;i=e[i].nxt){
			int v=e[i].to;
			if(e[i].fl){
				if(dis[v]==inf){
					dis[v]=dis[x]+1;
					q.push(v);
				}
			}
		}
	}
	return dis[T]!=inf;
}
int dfs(int x,int flow){
	if(x==T)return flow;
	int fl=0;
	for(int i=cur[x];i&&fl<flow;i=e[i].nxt){
		cur[x]=i;
		int v=e[i].to,w=e[i].fl;
		if(w&&dis[v]==dis[x]+1){
			int f=dfs(v,min(w,flow-fl));
			e[i].fl-=f;fl+=f;e[i^1].fl+=f;
		}
	}
	return fl;
}
int dinic(){
	int mxfl=0;
	while(bfs()){
		mxfl+=dfs(S,inf);
	}
	return mxfl;
}
bool check(int mid){
	for(int i=1;i<=tot;i++)head[i]=0,pos[i]=mp(0,0);
	tot=0;ent=1;
	for(int o=0;o<=mid;o++)
		for(int i=1;i<=n;i++)
			for(int j=1;j<=m;j++){
				in[o][i][j]=++tot;
				pos[tot]=mp(i,j);
				out[o][i][j]=++tot;
				add(in[o][i][j],out[o][i][j],1);
			}
	S=++tot;T=++tot;
	for(int i=1;i<=t;i++)add(S,in[0][a[i].fi][a[i].se],1);
	for(int i=1;i<=t;i++)ck[i]=++tot,add(ck[i],T,1);
	for(int o=0;o<=mid;o++){
		for(int i=1;i<=t;i++)
			add(out[o][b[i].fi][b[i].se],ck[i],1);
	}
	auto chk=[&](int x,int y){return x>=1&&x<=n&&y>=1&&y<=m;};
	for(int o=0;o<mid;o++){
		for(int i=1;i<=n;i++)
			for(int j=1;j<=m;j++){
				for(int k=0;k<=4;k++){
					int x=i+dx[k],y=j+dy[k];
					if(chk(x,y)){
						add(out[o][i][j],in[o+1][x][y],1);
					}
				}
			}
	}
	int mxfl=dinic();
	return mxfl==t;
}
signed main(){
	#ifdef do_while_true
//		assert(freopen("data.in","r",stdin));
//		assert(freopen("data.out","w",stdout));
	#endif
	read(t,n,m);
	for(int i=1;i<=t;i++)read(a[i].fi,a[i].se);
	for(int i=1;i<=t;i++)read(b[i].fi,b[i].se);
	int l=1,r=n*m,mid,as=0;
	while(l<=r){
		mid=(l+r)>>1;
		if(check(mid))as=mid,r=mid-1;
		else l=mid+1;
	}
	check(as);
	cout<<as<<'\n';
	vpii vec;
	function<void(int)>go=[&](int x){
		if(x==T)return ;
		if(pos[x].fi)
			vec.pb(pos[x]);
		for(int i=head[x];i;i=e[i].nxt)if(i%2==0){
			int v=e[i].to,w=e[i].fl;
			if(!w)
				go(v);
		}
		return ;
	};
	for(int i=1;i<=t;i++){
		vpii().swap(vec);
		go(in[0][a[i].fi][a[i].se]);
//		for(auto o:vec)cout<<o.fi<<' '<<o.se<<"; ";
		cout<<vec[0].fi<<' '<<vec[0].se<<' '<<vec.back().fi<<' '<<vec.back().se<<' ';
		int len=vec.size();
		int ct=as;
		for(int i=0;i+1<len;i++){
			auto [a,b]=vec[i];
			auto [c,d]=vec[i+1];
			if(a+1==c)putchar('D');
			else if(a-1==c)putchar('U');
			else if(b+1==d)putchar('R');
			else if(b-1==d)putchar('L');
			else putchar('S');
			--ct;
		}
		while(ct--)putchar('P');
		puts("");
	}
    #ifdef do_while_true
//		cerr<<'\n'<<"Time:"<<1.0*clock()/CLOCKS_PER_SEC*1000<<" ms"<<'\n';
	#endif
	return 0;
}