#include <stdio.h>
#define  L_SIZE 100    /* line size */
#define  N_SIZE 40     /* name size */

int main() {
	
  char line[L_SIZE], inname[N_SIZE], outname[N_SIZE];
  
  printf("Enter the name of input  file: ");
  scanf("%s", inname);
  
  FILE *infile  = fopen(inname, "r");
  if (infile == NULL) {
    printf("Can't open %s", inname);
    return 1;         /* terminate program */
  }
  
  printf("Enter the name of output file: ");
  scanf("%s", outname);
  FILE *outfile = fopen(outname, "w");
  if (outfile == NULL) {
    printf("Can't open %s", outname);
    return 1;         /* terminate program */
  }
  
  char *status = fgets(line, L_SIZE, infile);
  while (status != NULL) {
    fputs(line, outfile);
    status = fgets(line, L_SIZE, infile);
  }   
   
  fclose(infile);
  fclose(outfile);
  
  return 0;
}