/**

*

* pattern to be printed

*

* 3

* 2 3

* 1 2 3

* 0 1 2 3

* 1 2 3

* 2 3

* 3

*

* numericpattern122

*/

class numericpattern122 {

public static void main(String[] args) {

int rows = 7;

numericPattern122(rows);

}

private static void numericPattern122(int n) {

n/=2;

for (int i = 0; i <= n; i++) {

for (int j = 1; j <=n-i; j++) {

System.out.print(" ");

}

for (int j = 0; j <= i; j++) {

System.out.print((n-i+j)+" ");

}

System.out.println();

}

for (int i = 0; i <= n; i++) {

for (int j = -1; j <i; j++) {

System.out.print(" ");

}

for (int j = 0; j < n-i; j++) {

System.out.print((j+i+1)+" ");

}

System.out.println();

}

}

}