#include<bits/stdc++.h>
using namespace std;
#define ll long long
vector<int>xs,ys;
void give_initial_chart(int H, int W, std::vector<int> R,std::vector<int> C) {
xs=R,ys=C;
}
int swap_seats(int a,int b) {
swap(xs[a],xs[b]);
swap(ys[a],ys[b]);
ll ans=1;
ll r1=xs[0],r2=r1,c1=ys[0],c2=c1;
for(int i=1;i<xs.size();i++){
if(r1>xs[i]) r1=xs[i];
if(r2<xs[i]) r2=xs[i];
if(c1>ys[i]) c1=ys[i];
if(c2<ys[i]) c2=ys[i];
ans+=((i+1)==(c2-c1+1)*(r2-r1+1));
}
return ans;
}
// int main(){
// give_initial_chart(2,3,{0,1,1,0,0,1},{0,0,1,1,2,2});
// cout<<swap_seats(0,5)<<' '<<swap_seats(0,5);
// // ios_base::sync_with_stdio(0);cin.tie(0);
// // int _=1;
// // // cin>>_;
// // while(_--) solve();
// }
