#include <stdio.h>
/* Print the rationals from 1/1 upwards
   RPJ 28xii10
*/
int main(argc, argv) 
     int argc;
     char * argv[];
{
  int i, j;
  int n = 10;    /* default */
  if (argc > 1) n = atoi(argv[1]);
  for (i = 1; i < n; i++) 
    for (j = 1; j < n; j++) {
    printf("%d/%d  ", i, j);
    }   
  printf("\n");
}