/*Write a program in C to print the following pattern:
    			  1
    		 1  2  1
    	1  2  3  2  1
   1  2  3  4  3  2  1
1  2  3  4  5  4  3  2  1
*/

#include<stdio.h>
int main ()
{
	int n, i, j, k, l;
	printf ("\nEnter the total number of lines: ");
	scanf ("%d", &n);
	for (i=1; i<=n; i++) //outer loop i => maintains line no.
	{
		printf ("\n");
		for (j=1; j<=n-i; j++) //inner loop j => nos. in each line
		{
			printf ("  "); //placed 2 bar space after each no.
		}
		for (k=1; k<=i; k++)
		printf ("%d ", k);
		/*Till here left side of the pattern will be printed*/
		for (l=i-1; l>=1;l--) //prints the right half of the pattern
		printf ("%d ", l); 
	}
	return 0;
}