#include <stdio.h>
#include "strlib.h"
#include "simpio.h"
#include "genlib.h"
#include "string.h"
 
#define size 50
 
void reverse(char rev[]);
 
int main()
{
	char rev[size], i;
 
	printf("Please enter a sentence and end the sentence with a enter than end \n");
	reverse(rev);
	system("pause");
}
 
void reverse(char rev[])
{
	string ch;
	int i;
 
	if(StringCompare((ch = GetLine()), "end") != 0)
	{
		for(i=1; i<StringLength(ch); i++)
		{
		rev[i] = IthChar(ch, i);
		}
		reverse(rev);
	}
	else;
 
	for(i=48; i<size; i--)
	{
		if(rev[i] == 'end');
		else
		{
		printf("%c",rev[i]);
		}
	}
}