#include <stdio.h>
#include <stdlib.h>

void printDiamondPattren(int N) {
    if (N < 0) {
        printf("Invalid Input\n");
        return;
    }
    if (N > 10) {
        printf("Invalid Input (N exceeds maximiu of 10\n");
        return;
    }
    if (N == 0) {
        return;
    }
    for (int i = 1; i <= N; i++) {
        int spaces =N - i;
        
        for (int j = 0; j < spaces; j++){
            printf(" ");
        }
        for (int j = 0; j < i; j++) {
            printf(".");
        }
        printf("\n");
    }
    for (int i = N -1; i >= 1; i--) {
        int spaces = N - i;
        
        for (int j = 0; j < spaces; j++) {
            printf(" ");
        }
        for (int j = 0; j < i; j++){
            printf(".");
        }
        printf("\n");
    }
}
int main() {
    printf("Enter a single integer N (0 <= N <= 10): ");
    if (scanf("%d", &N) != 1) {
        fprintf(stderr, "Error: Inalid input format.\n");
        return 1;
    }
    return 0;
}   
    }
}
}