#include <stdio.h>
#include <stdlib.h>
int main()
{	
	//Declare all variables in the beginning.
	FILE* fin;
	FILE* fout;
	int count = 0;
	char curword[5];

	fin = fopen("words.dat","r"); //open file with "read" mode
	fout = fopen("output.txt","w+t"); //open file with "write" mode
	
	//Exit if files are not opened successfully
	if(fin == NULL || fout == NULL)
	{	
		fprintf(stdout,"Failed to open input file or output file.\n");
		exit(-1);
	}

	//Read and write strings 	
	while(fscanf(fin,"%s", curword) != EOF && count < 300 )
	{		
		fprintf(fout,"%s\t", curword);
		count++;
		if(count%5 == 0) 
			fprintf(fout,"\n");
	}
	
	//write the total number of words (output integer)
	fprintf(fout,"\n\nTotal number of words: %d\n",count);

	fclose(fin);
	fclose(fout);

	return 0;
}