#include<stdio.h>

int main(){
    int n;
    scanf("%d",&n);
    if (n<0){
        printf("Invalid Input");
        return 0;
        
        
    }
    int space = n/2;
    for (int i = 1; i <=n;i+=2){
        for (int j = 1; j<=space;j++){
            printf(" ");
        }
        for (int k =1;k<=i;k++){
            printf("%d",k);
        
        }
        printf("\n");
        space--;
        
    }
    space = 1;
    for (int i =n-2 ; i>=1; i -=2){
        for (int j = 1;j<= space;j++ ){
            printf(" ");
            
        }
        for (int k =1; k=i;k++){
            printf("%d",k);
            
        }
        printf("\n");
        space++;
    }
}