//별삼각형 출력하기
#include <stdio.h>

int main() {

    int n;
    scanf("%d", &n);

    for(int i=1; i<n; i+=2) {

        for(int j=1; j<=(n-i)/2; j++)
            printf(" ");
        for(int j=1; j<=i; j++) {
            if(j==1 || j==i)
                printf("*");
            else
                printf(" ");
        }
        printf("\n");   
    }
    
    for(int i=1; i<=n; i++)
        printf("*");

    return 0;
}

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