#include<stdio.h> intmain() { int n; if (scanf("%d", &n)) {}; for (int i = 1,b = n-1; i <= (n / 2) + 1; i++,b -= 2) { for (int m = 1; m <= b; m++) { printf(" "); } for (int t = 1; t <= 2 * i - 1; t++) { printf("* "); } printf("\n"); } for (int i = 1,b = 0,a = n; i <= n / 2 + 1; i++,b += 2,a -= 2) { if (i != 1) { for (int m = 1; m <= b; m++) { printf(" "); } for (int t = 1; t <= a; t++) { printf("* "); } printf("\n"); } } return0; }