#include <iostream>
#include <sstream>
#include <iomanip>
#include <vector>
#include <string>
#include <map>
#include <set>
#include <algorithm>
#include <numeric>
#include <iterator>
#include <functional>
#include <complex>
#include <queue>
#include <stack>
#include <cmath>
#include <cassert>
using namespace std;
typedef long long LL;
typedef long double LD;
typedef complex<LD> CMP;
//-------------------------------------------------------------
// Dinic's Algorithm
// O(V E)
//
// G : bidirectional (G[i].has(j) <==> G[j].has(i))
// F : flow-capacity F[i][j] = Capacity, F[j][i] = 0
//
// Verified by
// - SRM 399 Div1 LV3
// - PKU 1459
// - CodeCraft 09 CUTS
// - SRM 465 Div1 LV2
// - SRM 543 Div1 LV3
//-------------------------------------------------------------
template<typename T>
class IdGen
{
map<T, int> v2id_;
vector<T> id2v_;
public:
int v2id(const T& v) {
if( !v2id_.count(v) ) { v2id_[v] = size(); id2v_.push_back(v); }
return v2id_[v];
}
const T& id2v(int i) const { return id2v_[i]; }
int size() const { return id2v_.size(); }
};
template<typename Vert, typename Flow, int NV=2048>
class MaxFlow
{
IdGen<Vert> idgen;
vector<int> G[NV];
Flow F[NV][NV];
public:
void addEdge( Vert s_, Vert t_, Flow f )
{
const int s = idgen.v2id(s_), t = idgen.v2id(t_);
G[s].push_back(t);
G[t].push_back(s);
F[s][t] = f;
F[t][s] = 0;
}
Flow calc( Vert s_, Vert t_ )
{
const int S = idgen.v2id(s_), D = idgen.v2id(t_);
for( Flow total=0 ;; ) {
// Do BFS and compute the level for each node.
int LV[NV] = {0};
vector<int> Q(1, S);
for(int lv=1; !Q.empty(); ++lv) {
vector<int> Q2;
for(size_t i=0; i!=Q.size(); ++i) {
const vector<int>& ne = G[Q[i]];
for(size_t j=0; j!=ne.size(); ++j)
if( F[Q[i]][ne[j]] && !LV[ne[j]] && ne[j]!=S )
LV[ne[j]]=lv, Q2.push_back(ne[j]);
}
Q.swap(Q2);
}
// Destination is now unreachable. Done.
if( !LV[D] )
return total;
// Iterating DFS.
bool blocked[NV] = {};
total += dinic_dfs( S, D, LV, 0x7fffffff, blocked );
}
}
private:
Flow dinic_dfs( int v, int D, int LV[], Flow flow_in, bool blocked[] )
{
Flow flow_out = 0;
for(size_t i=0; i!=G[v].size(); ++i) {
int u = G[v][i];
if( LV[v]+1==LV[u] && F[v][u] ) {
Flow f = min(flow_in-flow_out, F[v][u]);
if( u==D || !blocked[u] && (f=dinic_dfs(u,D,LV,f,blocked))>0 ) {
F[v][u] -= f;
F[u][v] += f;
flow_out += f;
if( flow_in == flow_out ) return flow_out;
}
}
}
blocked[v] = (flow_out==0);
return flow_out;
}
};
class FoxAndCake { public:
string ableToDivide(int W, int H, vector <int> x, vector <int> y)
{
vector< vector<char> > M = compress(W, H, x, y);
H = M.size();
W = M[0].size();
typedef pair< int, pair<int,int> > Vert;
enum {IN, OUT, SPECIAL};
Vert Src(SPECIAL, make_pair(0, 0));
Vert Sink(SPECIAL, make_pair(1, 1));
MaxFlow<Vert,int,7*7*7*2+2> G;
for(int y=0; y<H; ++y)
for(int x=0; x<W; ++x) if( M[y][x]!='#' )
{
int dy[] = {-1,+1,0,0};
int dx[] = {0,0,-1,+1};
for(int d=0; d<4; ++d) {
int yy = y + dy[d];
int xx = x + dx[d];
if(0<=yy&&yy<H&&0<=xx&&xx<W&&M[yy][xx]!='#')
G.addEdge(Vert(OUT, make_pair(y,x)), Vert(IN, make_pair(yy,xx)), 1);
}
G.addEdge(Vert(IN, make_pair(y,x)), Vert(OUT, make_pair(y,x)), 1);
if(M[y][x]=='C') G.addEdge(Src, Vert(IN, make_pair(y,x)), 1);
if(M[y][x]=='S') G.addEdge(Vert(OUT, make_pair(y,x)), Sink, 1);
}
return G.calc(Src, Sink)==3 ? "Yes" : "No";
}
vector< vector<char> > compress(int W, int H, vector<int>& x, vector<int>& y)
{
for(int i=0; i<7; ++i)
--x[i], --y[i];
set<int> sigx, sigy;
for(int i=0; i<7; ++i)
for(int d=-3; d<=+3; ++d) {
if(0<=x[i]+d && x[i]+d<W)
sigx.insert(x[i]+d);
if(0<=y[i]+d && y[i]+d<H)
sigy.insert(y[i]+d);
}
vector<int> sx(sigx.begin(), sigx.end());
vector<int> sy(sigy.begin(), sigy.end());
map<int,int> inv_sx; for(int i=0; i<sx.size(); ++i) inv_sx[sx[i]] = i;
map<int,int> inv_sy; for(int i=0; i<sy.size(); ++i) inv_sy[sy[i]] = i;
W = sx.size();
H = sy.size();
vector< vector<char> > result(H, vector<char>(W, ' '));
for(int i=0; i<7; ++i) {
int xx = inv_sx[x[i]];
int yy = inv_sy[y[i]];
result[yy][xx] = (i==0?'#':i<4?'C':'S');
}
return result;
}
};
// BEGIN CUT HERE
#include <ctime>
double start_time; string timer()
{ ostringstream os; os << " (" << int((clock()-start_time)/CLOCKS_PER_SEC*1000) << " msec)"; return os.str(); }
template<typename T> ostream& operator<<(ostream& os, const vector<T>& v)
{ os << "{ ";
for(typename vector<T>::const_iterator it=v.begin(); it!=v.end(); ++it)
os << '\"' << *it << '\"' << (it+1==v.end() ? "" : ", "); os << " }"; return os; }
void verify_case(const string& Expected, const string& Received) {
bool ok = (Expected == Received);
if(ok) cerr << "PASSED" << timer() << endl; else { cerr << "FAILED" << timer() << endl;
cerr << "\to: \"" << Expected << '\"' << endl << "\tx: \"" << Received << '\"' << endl; } }
#define CASE(N) {cerr << "Test Case #" << N << "..." << flush; start_time=clock();
#define END verify_case(_, FoxAndCake().ableToDivide(n, m, x, y));}
int main(){
CASE(0)
int n = 2;
int m = 4;
int x_[] = {1,1,1,1,2,2,2};
vector <int> x(x_, x_+sizeof(x_)/sizeof(*x_));
int y_[] = {1,2,3,4,2,3,4};
vector <int> y(y_, y_+sizeof(y_)/sizeof(*y_));
string _ = "Yes";
END
CASE(1)
int n = 2;
int m = 4;
int x_[] = {1,1,2,1,2,1,2};
vector <int> x(x_, x_+sizeof(x_)/sizeof(*x_));
int y_[] = {1,2,2,3,3,4,4};
vector <int> y(y_, y_+sizeof(y_)/sizeof(*y_));
string _ = "No";
END
CASE(2)
int n = 6;
int m = 6;
int x_[] = {1,1,3,4,3,4,5};
vector <int> x(x_, x_+sizeof(x_)/sizeof(*x_));
int y_[] = {2,6,4,5,5,4,2};
vector <int> y(y_, y_+sizeof(y_)/sizeof(*y_));
string _ = "Yes";
END
CASE(3)
int n = 999999999;
int m = 999999999;
int x_[] = {500000000,1,1,1,999999999,999999999,999999999};
vector <int> x(x_, x_+sizeof(x_)/sizeof(*x_));
int y_[] = {500000000,1,2,3,999999997,999999998,999999999};
vector <int> y(y_, y_+sizeof(y_)/sizeof(*y_));
string _ = "Yes";
END
CASE(4)
int n = 1000000000;
int m = 1000000000;
int x_[] = {500000000,1,1,2,999999998,999999999,999999999};
vector <int> x(x_, x_+sizeof(x_)/sizeof(*x_));
int y_[] = {500000000,1,2,1,999999999,999999998,999999999};
vector <int> y(y_, y_+sizeof(y_)/sizeof(*y_));
string _ = "No";
END
CASE(5)
int n = 7;
int m = 2;
int x_[] = {4,1,2,3,5,6,7};
vector <int> x(x_, x_+sizeof(x_)/sizeof(*x_));
int y_[] = {2,1,2,2,2,2,1};
vector <int> y(y_, y_+sizeof(y_)/sizeof(*y_));
string _ = "No";
END
CASE(6)
int n = 7;
int m = 2;
int x_[] = {5,1,2,4,3,6,7};
vector <int> x(x_, x_+sizeof(x_)/sizeof(*x_));
int y_[] = {1,1,1,1,1,1,1};
vector <int> y(y_, y_+sizeof(y_)/sizeof(*y_));
string _ = "No";
END
}
// END CUT HERE