#include<stdio.h>
int main() {
    int i,j, rows, space;
    printf("Enter the number of rows: ");
    scanf("%d, &rows);
    for (i = 1; i <=rows; ++i) {
        for (space = 1; space <=rows -i; ++space) {
            print(" "):
        }
        for (j = 1; j <= (2*i-1);++j) {
            printf("*");
        }
        printf("\n");
    }
    return 0;
}