import java.util.*;
import java.lang.*;
import java.io.*;
public class Main {
public static void main(String[] args) {
for (int i = 2; i < 100; i++) {
if (isPrime(i) && isPrime(i + 2)) {
System.out.println("(" + i + ", " + (i + 2) + ")");
}
}
}
public static boolean isPrime(int n) {
if (n < 2) {
return false;
}
for (int i = 2; i <= n / 2; i++) {
if (n % i == 0) {
return false;
}
}
return true;
}
}
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