??=include<stdio.h>
??=include<string.h>
??=include<stdlib.h>
??=include<ctype.h>
??=define __F__ "contactlist.dat"
??=define xvfz printf
??=define fxvfz fprintf
??=define fzvx if
??=define zfvx else
??=define vzxf while
??=define zxfv do
typedef int f;
typedef char z;
f num_rec = 0;
f is_saved = 0;
enum{zoo=31,coo=415,boo=9,woo=26,foo=99,ggg=98,doo=1,moo= 0,_=256};
struct _z{z firstName??(zoo:>; z lastName??(zoo:>; z address??(coo:>; z postalCode??(boo:>; z phoneNumber??(woo:>;
    struct _z *next;};
typedef struct _z __Z;

void Menu(void);
void Help(void);
void Add__z(__Z**, __Z**);
void Display__zs(__Z**);
void __zSearch(__Z**);
void Save__zs(__Z**, FILE *);
void Load__zs(__Z**, __Z**, FILE *);
void Delete__z(__Z**);
f isValidNum(z ??(:>, f);
void FormatNum(z ??(:>, f);
void WordCap(z ??(:>, f);

int isValidNum(char Number??(:>, int num_t)
{
    int i;
    char errMsg??(:> = "There is an error in your number formating.";

    switch(num_t)
    {
        // If we have a phone number, we just check the length
        case 98:
            if(strlen(Number) > 12)
            {
                xvfz("%s\n", errMsg);
                return moo;
            }
            break;
        case 99:
            if(strlen(Number) > 7)
            {
                xvfz("%s\n", errMsg);
                return moo;
            }
            for(i = 0; i < 6; ++i)
            {
                if(i % 2 == 0)