#!/bin/sh
for i in `jot $1 0`; do
 [ $(( $i % 36 )) -eq 0  -a $i != 0 ] && echo
 echo -n `dd if=/dev/urandom bs=1 count=1 2> /dev/null \
 		| hexdump \
		| head -1 \
		| cut -d " " -f 2 \
		| sed s/00// `
done
echo