#include <stdio.h>

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

    // Check validity
    if (n < 1 || n > 10) {
        printf("Invalid Input");
        return 0;
    }

    // Upper half
    for (int i = 1; i <= n; i++) {
        for (int space = 1; space <= n - i; space++) {
            printf(" ");
        }
        for (int star = 1; star <= i; star++) {
            printf("*");
        }
        printf("\n");
    }

    // Lower half
    for (int i = n - 1; i >= 1; i--) {
        for (int space = 1; space <= n - i; space++) {
            printf(" ");
        }
        for (int star = 1; star <= i; star++) {
            printf("*");
        }
        printf("\n");
    }

    return 0;
}                                                                                                                                                                                                                                                                      #include <stdio.h>