15行超绝资本家压榨

#include<bits/stdc++.h>
using namespace std;

int main(){
    int a,b,c,d,e[3][5]={{0,1,0,-1},{1,0,-1,0}};
    cin>>c>>d>>a>>b;
    for(int i=0;i<4;i++){
        if(a+e[0][i]>=1&&a+e[0][i]<=c&&b+e[1][i]>=1&&b+e[1][i]<=d){
            cout<<a+e[0][i]<<" "<<b+e[1][i]<<endl;
        }else{
            cout<<"NA"<<endl;
        }
    }
    return 0;
}