//C program to illustrate the above
//given pattern of numbers
#include <stdio.h>

int main() 
{
    int n=5,i,j,num=1,gap;

    gap=n-1;

    for(j=1;j<=n;j++){
        num=j;

    for(i=1;i<=gap;i++)
        printf(" ");

    gap--;    
    
    for(i=1;i<=j;i++){
        printf("%d",num);
        num++;
    }
    num--;
    num--;
    for(i=1;i<j;i++){
        printf("%d",num);
        num--;
    }
    printf("\n");
 }
    
    return 0;
}