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

int main () {

    char *message = malloc (2048);
    char *code = malloc (2048);

    int splittedCode [] = {};
    int digit, digitNumber = 0;


    // Get message

    printf ("Scrivi un messaggio.\n");

    scanf ("%s", message);

    message = realloc (message, strlen (message));

    //Get code

    printf ("Inserisci il codice segreto (massimo 6 numeri).\n");

    scanf ("%s", code);

    code = realloc (code, strlen (code));


    //Check if code contains letters

    for (int i = 0; i < strlen (code); ++i) {

        digit = code [i] - 48;

        if (digit >= 0 && digit <= 9) {

            ++digitNumber;

        }

    }

    //If code contains letter or is more than 6 characters long

    while (digitNumber > 6 || digitNumber != strlen (code)) {
printf ("%d %d", digitNumber, strlen (code));
        digitNumber = 0;

        printf ("Il codice non e' valido, inserisci un codice valido.\n");

        scanf ("%d", code);

        for (int i = 0; i < strlen (code); ++i) {

            digit = code [i] - 48;
printf ("%d\n", digit);
            if (digit >= 0 && digit <= 9) {
printf ("1 cifra");
                ++digitNumber;

            }

        }

    }

    printf ("ok");

    free (message);
    free (code);

    return 0;

}