int number = 4563, temp;
bool = false;
string output;
int position = 0;

string single[10] = {"zero", "one", "two", "three", "four", "five", "six", "seven", "eight", "nine"};
string _ies[9] = {"eleven", "twelve", "thirteen", "fourteen", "fifteen", "sixteen", "seventeen", "eighteen", "nineteen"};
string tens[10] = {"ten", "twenty", "thirty", "fourty", "fifty", "sixty", "seventy", "eighty", "ninty", "hundred" };

if(number < 0) negative = true;
while(number >= 0){
	temp = (number % pow(10, position));
	number -= temp;
	temp /= pow(10, position); //temp contains the [position] digit.
	if(temp == 0){
		position++;
		continue;
	}else{
		if((position%3) = 1){
			output = single[temp] . output;
		}else if((position%3) = 2){
			output = ten[temp] . output;
		}
		else{
			output = singe[temp] . "hundred" . output;
		}
	}
}