#!/bin/bash
while [ 1 ]
do
read a b
a1=0
c=1
c1=1
if [ $a == 1 && $b == 1 ]
break;
while [ "$a1" -le $b ]
do
c1=`echo "($c1 * $a)" |bc`
a1=`echo "$a1+1"|bc`
done
echo "$c1/$a" |bc|sed -e ':a;N;$!ba;s/\n//g'|sed -e 's/\\//g'
done
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