/* package whatever; // don't place package name! */
import java.util.*;
import java.lang.*;
import java.io.*;
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
{
Scanner sc
= new Scanner
(System.
in); int a
= Integer.
parseInt(sc.
nextLine()); int b
= Integer.
parseInt(sc.
nextLine()); int c
= Integer.
parseInt(sc.
nextLine()); int d
= Integer.
parseInt(sc.
nextLine()); if (a==c || b==d){
}else{
}
}
}
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