/// RESTRICTED AREA
#include <bits/stdc++.h>
using namespace std;
#pragma GCC optimize("O2,no-stack-protector,unroll-loops,fast-math")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
//#pragma GCC optimize("Os")
/* Who knew evil girls had the prettiest face */
/* I'm not god, baby / I don't forgive, baby */
/* I'm like "Hey, what's up? Hello"
Seen yo pretty ass soon as you came in the door
I just wanna chill, got a sack for us to roll
Married to the money, introduced her to my stove
Showed her how to whip it, now she remixin' for low
She my trap queen, let her hit the bando
We be countin' up, watch how far them bands go
We just set a goal, talkin' matchin' Lambos
At fifity six a gram, five a hundred grams though
Man, I swear I love her, how she work the damn pole
Hit the strip club, we be lettin' bands go
Everybody hatin', we just call them fans, though
In love with the money, I ain't never lettin' go */
/* We pop out at your party, I'm with the gang
And it's gon' be a robbery, so tuck ya chain
I'm a killer girl, I'm sorry, but I cannot change
We ain't aiming for your body, shots hit you brain
We come from poverty, man, we ain't have a thing
It's a lot of animosity, but they won't say my name
Them killers rock with me, lil' nigga, don't get banged
'Cause they'll do that job for me while I hop on a plane */
/* I take you to the candy shop */
/* Baby, let me put your panties to the side
I'ma make you feel alright
'Cause I'ma give you what you need, yeah */
/* Ooooh ooh, it's me, myself and I
Solo ride until I die, 'cause I got me for life */
/* So I ball So hard, muh'fuckas wanna find me */
/* Bitch, where you when I was walkin'?
Now I run the game, got the whole world talkin' */
/* Niggas been counting me out
I'm counting my bullets, I'm loading my clips
I'm writing down names, I'm making a list */
/* Fuck your friendship, I meant it */
/* The Chanel or Balenciaga, Louis and Vuitton
She know I got Fendi, Prada when I hit Milan */
/* I ran away, I don't think I'm coming back home */
#define F first
#define S second
#define pb emplace_back
#define SZ(x) (ll)(x.size())
#define all(x) x.begin(),x.end()
#define mp make_pair
typedef int ll;
typedef long double ld;
typedef pair<ll,ll> pll;
//mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
const ll maxn=2e3+10, maxm=1e3+10, lg=20, mod=1e9+7, inf=1e18;
#define tapal tuple<int,int,int>
//typedef tuple<ll,ll,ll> tapal;
ll n,m,w,h,par[maxn];
ll x[maxn],y[maxn],r[maxn];
ll d[4][4];
vector<pll> g[4];
ll gpar(ll u){ return par[u]= par[u]==u ? u:gpar(par[u]); }
void mrg(ll v,ll u){ par[gpar(v)]=gpar(u); }
bool cmp(tapal a,tapal b){ return get<2>(a) < get<2>(b) ; }
int main(){
ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0);
g[1]={{2, 3}, {0, 2}, {2, 1}};
g[2]={{1, 2}, {1, 3}, {0, 2}, {0, 3}};
g[3]={{1, 3}, {0, 1}, {1, 2}};
iota(par,par+maxn,0);
cin>>n>>m>>w>>h;
vector<tapal> E;
for(int i=0;i<n;i++){
cin>>x[i]>>y[i]>>r[i];
E.pb(i,n ,h-y[i]-r[i]);
E.pb(i,n+1,x[i]-r[i]);
E.pb(i,n+2,y[i]-r[i]);
E.pb(i,n+3,w-x[i]-r[i]);
}
for(int i=0;i<n;i++)for(int j=i+1;j<n;j++) E.pb(i,j,(ll)(hypot(x[i]-x[j],y[i]-y[j]))-r[i]-r[j]);
sort(all(E),cmp);
for(int i=0;i<4;i++)for(int j=0;j<4;j++) d[i][j]=(i==j ? mod:-1);
for(auto x:E){
ll u,v,w; tie(u,v,w)=x;
mrg(u,v);
for(int i=0;i<4;i++)for(int j=0;j<4;j++)if(i!=j)for(auto z:g[(j-i+4)%4]){
ll a,b; tie(a, b)=z;
a=n+((a+i)%4), b=n+((b+i)%4);
if(gpar(a)==gpar(b) && d[i][j]==-1) d[i][j]=w;
}
}
for(int i=0;i<4;i++)for(int j=0;j<4;j++)if(d[i][j]==-1) d[i][j]=mod;
for(int i=0,a,b;i<m;i++){
cin>>a>>b; b--; a*=2;
for(int j=0;j<4; ++j)if(a<=d[b][j]) cout<<j+1;
cout<<'\n';
}
return 0;
}
