#include <stdio.h>

int main() {
    int i, j, n;

    printf("Enter the number of rows (half of diamond): ");
    scanf("%d", &n);

    for(i = 1; i <= n; i++) {
        for(j = 1; j <= i; j++) {
            printf("*");
        }
        printf("\n");
    }
    for(i = n-1; i >= 1; i--) {
        // Print spaces
        for(j = 1; j <= i; j--) {
            printf("*");
        }
        printf("\n");
        }
    return 0;
}