// editor1
#include <stdio.h>
int main () {
    int N;
    scanf("%d",&N);
    if(N < 1 || N > 10) {
        printf("Invalid input");
    }
    else {
        for (int i = 1; i <= N; i++) {
            for (int j = 1; j <= i; j++) {
                printf("*");
            }
            printf("\N");
        }
        for (int i = N -1; i >= 1; i--) {
            for (int j = 1; j <= i; j++) {
                printf("*");
            }
            printf("\N");
        }
    }
    return 0;
}