AbdelrahmanSherifHadeya

#include <cs50.h>
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <string.h>

int main(int argc, string argv[])
{
    //int number = atoi(argv[1]); // convert the string argv to use it in the if condition
    // checking if the user use the command line comands correctly or not

AbdelrahmanSherifHadeya

#include <cs50.h>
#include <stdio.h>

int company0(long long Number);
int company1(long long Number);
int summation(long long Number, int digit);



int main(void)