#include<bits/stdc++.h>
using namespace std;
const int p_max=110,q_max=1000100;
int n,a,b,s,t,edge=1;
int d[q_max],now[q_max],to[q_max],Next[q_max],fir[q_max];
int v[q_max],ans=0;
int x[p_max][2],y[p_max][2],link[p_max];
void add(int x,int y,int w){
	to[++edge]=y; v[edge]=w; Next[edge]=fir[x]; fir[x]=edge;
	to[++edge]=x; v[edge]=0; Next[edge]=fir[y]; fir[y]=edge;
}
bool bfs(){
	for(int i=1;i<=t;i++) d[i]=0;
	queue<int> q;
	q.push(s);
	d[s]=1;
	now[s]=fir[s];
	while(!q.empty()){
		int x=q.front();q.pop();
		for(int i=fir[x];i;i=Next[i]){
			if(!d[to[i]]&&v[i]){//为分层且有权值的边才进行遍历
				q.push(to[i]);
				now[to[i]]=fir[to[i]];
				d[to[i]]=d[x]+1;
				if(to[i]==t) return true;
			}
		}
	}
	return false;
}
int dfs(int u,int flow){
	if(u==t) return flow;
	int rest=flow,k,i;
	for(i=now[u];i&&rest;i=Next[i]){
		if(v[i]&&d[to[i]]==d[u]+1){
			k=dfs(to[i],min(rest,v[i]));//找最小流
			if(!k) d[to[i]]=0;//剪枝，删掉已经增广过的点
			link[u]=to[i];
			v[i]-=k;
			v[i^1]+=k;
			rest-=k;//从u出发的点要消耗k
		}
	}
	now[u]=i;//将u的下一个结点置空，避免重复
	return flow-rest;//返回在u点的最大流出
}
int dinic(){
	ans=0;
	while(bfs()) ans+=dfs(s,1e9);
	return ans;
}
int num(int k,int x,int y,int flag){return k*a*b+(x-1)*b+y+flag*(a+b+1)*a*b;}
bool check(int mid){
	for(int i=0;i<=t;i++) fir[i]=0;
	edge=1;
	for(int i=1;i<=n;i++){
		add(s,num(0,x[i][0],y[i][0],0),1);
	}
	for(int i=1;i<=a;i++){
		for(int j=1;j<=b;j++){
			for(int k=0;k<mid;k++){
				add(num(k,i,j,0),num(k,i,j,1),1);
				add(num(k,i,j,1),num(k+1,i,j,0),1);
				if(i>1) add(num(k,i,j,1),num(k+1,i-1,j,0),1);
				if(j>1) add(num(k,i,j,1),num(k+1,i,j-1,0),1);
				if(i<a) add(num(k,i,j,1),num(k+1,i+1,j,0),1);
				if(j<b) add(num(k,i,j,1),num(k+1,i,j+1,0),1);
			}
			add(num(mid,i,j,0),num(mid,i,j,1),1);
		}
	}
	for(int i=1;i<=n;i++){
		for(int j=0;j<=mid;j++){
			add(num(j,x[i][1],y[i][1],1),num(mid,a,b,1)+i,1);
		}
		add(num(mid,a,b,1)+i,t,1);
	}
	return dinic()==n;
}
int main(){
	cin>>n>>a>>b;
	s=0;t=num(a+b,a,b,1)+n+1;
	for(int i=1;i<=n;i++) cin>>x[i][0]>>y[i][0];
	for(int i=1;i<=n;i++) cin>>x[i][1]>>y[i][1];
	int l=1,r=1;
	while(l<=r){
		int mid=(l+r)/2;
		if(check(mid)) r=mid-1;
		else l=mid+1;
	}
	cout<<l<<endl;
	for(int i=1;i<=1;i++){
		int u=num(0,x[i][0],y[i][0],0),j=0;
		vector<char> c;
		int p0,q0,p1,q1;
		p0=(u-1)%(a*b)+1;
		q0=(p0-1)%b+1;
		p0=(p0-1)/b+1;
		cout<<p0<<' '<<q0<<' ';
		while(link[u]<=num(l,a,b,1)){
			p0=(u-1)%(a*b)+1;
			q0=(p0-1)%b+1;
			p0=(p0-1)/b+1;
			u=link[u];
			u=link[u];
			if(u>num(l,a,b,1)) break;
			p1=(u-1)%(a*b)+1;
			q1=(p1-1)%b+1;
			p1=(p1-1)/b+1;
			if(p0+1==p1) c.push_back('D');
			if(p0-1==p1) c.push_back('U');
			if(q0+1==q1) c.push_back('R');
			if(q0-1==q1) c.push_back('L');
			if(p0==p1&&q0==q1) c.push_back('P');
			j++;
//			cout<<p0<<' '<<q0<<' '<<p1<<' '<<q1<<endl;
		}
		cout<<p0<<' '<<q0<<' ';
		while(j<l) j++,c.push_back('P');
		for(auto it:c) cout<<it;
		cout<<endl;
	}
	return 0;
}

answer.code:7:39: error: ‘int link [110]’ redeclared as different kind of entity
    7 | int x[p_max][2],y[p_max][2],link[p_max];
      |                                       ^
In file included from /usr/include/c++/13/bits/atomic_wait.h:44,
                 from /usr/include/c++/13/bits/atomic_base.h:42,
                 from /usr/include/c++/13/bits/shared_ptr_atomic.h:33,
                 from /usr/include/c++/13/memory:81,
                 from /usr/include/x86_64-linux-gnu/c++/13/bits/stdc++.h:56,
                 from answer.code:1:
/usr/include/unistd.h:789:12: note: previous declaration ‘int link(const char*, const char*)’
  789 | extern int link (const char *__from, const char *__to)
      |            ^~~~
answer.code: In function ‘int dfs(int, int)’:
answer.code:38:31: warning: pointer to a function used in arithmetic [-Wpointer-arith]
   38 |                         link[u]=to[i];
      |                               ^
answer.code:38:32: error: assignment of read-only location ‘*(link + ((sizetype)u))’
   38 |                         link[u]=to[i];
      |                         ~~~~~~~^~~~~~
answer.code: In function ‘int main()’:
answer.code:100:29: warning: pointer to a function used in arithmetic [-Wpointer-arith]
  100 |                 while(link[u]<=num(l,a,b,1)){
      |                             ^
answer.code:100:30: error: ISO C++ forbids comparison between pointer and integer [-fpermissive]
  100 |                 while(link[u]<=num(l,a,b,1)){
      |                       ~~~~~~~^~~~~~~~~~~~~~
answer.code:104:33: warning: pointer to a function used in arithmetic [-Wpointer-arith]
  104 |                         u=link[u];
      |                                 ^
answer.code:104:33: error: invalid conversion from ‘int (*)(const char*, const char*) noexcept’ to ‘int’ [-fpermissive]
  104 |                         u=link[u];
      |                           ~~~~~~^
      |                                 |
      |                                 int (*)(const char*, const char*) noexcept
answer.code:105:33: warning: pointer to a function used in arithmetic [-Wpointer-arith]
  105 |                         u=link[u];
      |                                 ^
answer.code:105:33: error: invalid conversion from ‘int (*)(const char*, const char*) noexcept’ to ‘int’ [-fpermissive]
  105 |                         u=link[u];
      |                           ~~~~~~^
      |                                 |
      |                                 int (*)(const char*, const char*) noexcept