可以逃课的方法

#include<iostream>
using namespace std;
int n,m,x,y;
int main(){
scanf("%d%d%d%d",&n,&m,&x,&y);
if(y+1 <= m) printf("%d %d\n",x,y+1);
else printf("NA\n");
if(x+1 <= n) printf("%d %d\n",x+1,y);
else printf("NA\n");
if(y-1 >= 1) printf("%d %d\n",x,y-1);
else printf("NA\n");
if(x-1 >= 1) printf("%d %d\n",x-1,y);
else printf("NA");
return 0;
}