import java.util.Random;
public class Main {
public static void main(String[] args) {
int sizeOfTable = 7;
int[][] table = new int[sizeOfTable][sizeOfTable];
Random random = new Random();
for (int i = 0; i < sizeOfTable; i++) {
for (int j = 0; j < sizeOfTable; j++) {
if (i == j || i == sizeOfTable - j - 1)
table[i][j] = 0;
else if ((i < j && j < sizeOfTable - i - 1) || (i > j && j > sizeOfTable - i - 1))
table[i][j] = random.nextInt(5) + 1;
else
table[i][j] = -random.nextInt(5) - 1;
}
}
for (int i = 0; i < sizeOfTable; i++) {
for (int j = 0; j < sizeOfTable; j++) {
System.out.printf("%4d", table[i][j]);
}
System.out.println();
}
}
}