#include <bits/stdc++.h>
#include <robots.h>
using namespace std;
typedef vector<int> vi;
typedef vector<pair<int, int> > vpii;
typedef pair<int, int> pii;
typedef long long ll;
typedef pair<ll, ll> pll;
typedef pair<double, double> pdd;
typedef vector<ll> vll;
#define INF 0x3f3f3f3f
#define MOD 1000000007LL
#define EPSILON 0.00001
#define f first
#define s second
#define pb push_back
#define mp make_pair
#define FOR(i, a, b) for (ll i=(a); i<=(signed)(b); i++)
#define F0R(i, a) for (ll i=0; i<(signed)(a); i++)
#define RFOR(i, a, b) for (ll i=(a); i >= b; i--)
#define MN 1000005
int putaway(int A, int B, int T, int X[], int Y[], int W[], int S[]){
int b1 = 0, b2 = 0;
if(A == B){
if(X[0] >= W[0]) b1++;
if(X[0] >= W[1]) b2++;
if(Y[0] >= S[0]) b1 += 2;
if(Y[0] >= S[1]) b2 += 2;
if(b1 == 0 || b2 == 0) return -1;
if(b1 == b2 && b1 != 3) return 2;
return 1;
} else if(A == 2){
if(X[0] >= W[0]) b1++;
if(X[0] >= W[1]) b2++;
if(X[1] >= W[0]) b1 += 2;
if(X[1] >= W[1]) b2 += 2;
if(b1 == 0 || b2 == 0) return -1;
if(b1 == b2 && b1 != 3) return 2;
return 1;
} else{
if(Y[0] >= S[0]) b1++;
if(Y[0] >= S[1]) b2++;
if(Y[1] >= S[0]) b1 += 2;
if(Y[1] >= S[1]) b2 += 2;
if(b1 == 0 || b2 == 0) return -1;
if(b1 == b2 && b1 != 3) return 2;
return 1;
}
}
/*int main(){
ios_base::sync_with_stdio(false);
cin.tie(0);
int A, B, T;
cin >> A >> B >> T;
int X[A], Y[B], W[T], S[T];
F0R(i, A) cin >> X[i];
F0R(i, B) cin >> Y[i];
F0R(i, T) cin >> W[i] >> S[i];
cout << putaway(A, B, T, X, Y, W, S) << "\n";
return 0;
}*/
