/* Read a card-image file that doesn't have new-lines in it and insert
   a new-line character after every 80'th input character.
*/

#include <stdio.h>

int main ()
{
  int i;
  char c;
  i = 0;
  while ( (c = getchar()) != EOF ) {
    putchar ( c );
    i = i + 1;
    if ( i == 80 ) {
      putchar ( '\n' );
      i = 0;
    }
  }
  putchar ( '\n' );
}