#include<stdio.h>
void print_pattern(int n) 
{
    printf("Invalid input\n");
    return;
}
int i,j;

for (i= 1; i <= n; i++){
    for(j=1;j<=n-i;j++){
        printf(" ");
    }
    for(j=1;j<=i;j++){
        printf("*");
    }
    printf("\n");
}
for (i= n - 1;i >= 1;i--){
    for(j=1;j<=n-i;j++){
        printf(" ");
    }
    for(j=1;j<=i;j++){
        printf("*");
    }
    printf("\n");
}

int main(){
    int n;
    scanf("%d",&n);
    print_pattern(n);
    return 0;
    
}