#include <stdio.h>
void printPattern(int n){
    if (n < 0){
        printf("Invalid Input\n");
        return 0;
    }
// Print the increasing part of the pattern
for (int i = 1; i <= n; i++){
    for (int j = 1; j <= i; j++){
        printf("*");
    }
printf("\n");
}
// Print the decreasing part of the pattern
for (int i = n -1; i >= 1; i--){
    for (int j = 1; j <= i; j++){
        printf("*");
    }
printf("\n");
    }
}
int main(){
    int n;
    printf("Enter a number: ");
    scanf("%d" , &n);
    printPattern(n);
    return 0;
}