What is wrong with this code (C++)

[The_Doctor]

I changed around some of it, and now it does not work. When you enter something and press enter it ends the program.

#include <iostream.h>

void main()
{
#define Easy_Level 1
#define Medium_Level 2
#define Hard_Level 3
int Option;
bool Word_Complete;

std::cout<< "Game intructions\n";
std::cout<< "Please select a difficulty level\n";
std::cout<< "1=Easy\n";
std::cout<< "2=Medium\n";
std::cout<< "3=Hard\n";
std::cin>> Option;

if (Option == Easy_Level) {
do
{cout<< "Display scambled word\n";
Word_Complete = true;
}
while(Word_Complete = false);
}

if (Option == Medium_Level) {
do
{cout<< "Display scambled word\n";
Word_Complete = true;
}
while(Word_Complete = false);
}

if (Option == Hard_Level) {
do
{cout<< "Display scambled word\n";
Word_Complete = true;
}
while(Word_Complete = false);
}

return 0;
}