#include "robots.h"
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;
#define rep(a, b) for(int a = 0; a < (b); ++a)
#define st first
#define nd second
#define pb push_back
#define all(a) a.begin(), a.end()
const int LIM=1e6+7;
int odw[LIM], akt;
int putaway(int A, int B, int n, int X[], int Y[], int W[], int S[]) {
sort(X, X+A);
sort(Y, Y+B);
rep(i, n) if(W[i]>=X[A-1] && S[i]>=Y[B-1]) return -1;
int p=0, ans=1;
while(akt<n) {
int ma=-1, l=-1;
rep(j, n) if(!odw[j]) {
if(p<A) {
if(W[j]<X[p] && S[j]>ma) {
ma=S[j];
l=j;
}
} else {
if(S[j]<Y[p-A] && W[j]>ma) {
ma=W[j];
l=j;
}
}
}
if(l!=-1) {
odw[l]=1;
++akt;
}
++p;
if(p==A+B) {
++ans;
p=0;
}
}
return ans;
}
