#!/bin/bash

 

#count縺ｮ譯∵焚縺�4譯√〒縺ｪ縺��ｴ蜷医€√€梧焚蟄励�4譯√〒縺ｪ縺�→縺�￠縺ｪ縺�€阪→蜃ｺ繧九ｈ縺�↓縺励∪縺吶€�


count=${#1} 
if test $count -ne 4
then
echo "the number must be four-digits"

fi
#蜈･蜉帙＆繧後◆4譯√�謨ｰ蟄励ｒ縺昴ｌ縺槭ｌ4縺､縺ｮ謨ｰ蟄励↓蛻�￠縺ｾ縺吶€�
n1=`echo $1 | cut -c1`
n2=`echo $1 | cut -c2`
n3=`echo $1 | cut -c3`
n4=`echo $1 | cut -c4`

echo "$n1,$n2,$n3,$n4"

#邨先棡繧貞�縺吶◆繧√�繝輔ぃ繧､繝ｫ(quiz2.txt)縺梧里縺ｫ譖ｸ縺榊�縺輔ｌ縺ｦ縺�ｋ縺ｮ縺ｪ繧峨�縲√◎繧後ｒ逋ｽ邏吶↓縺励∪縺吶€�
if test -e quiz2.txt ; then
 cat /dev/null >quiz2.txt
fi


#縺薙％縺九ｉ縺ｯ縲∬ｨ育ｮ励＠縺ｦ縺�″縺ｾ縺吶€�()縺ｮ鄂ｮ縺肴婿縺ｧ11騾壹ｊ縺ゅｋ縺ｮ縺ｧ縲�11蝗槫酔縺倥ｈ縺�↑貍皮ｮ励ｒ郢ｰ繧頑崛縺医＠縺ｦ縺�″縺ｾ縺吶€�
縺薙％縺ｧ縲�11騾壹ｊ縺ｮ�茨ｼ峨�鄂ｮ縺肴婿縺ｨ縺ｯ縲�
abcd,(ab)cd,ab(cd),(ab)(cd),(abc)d,a(bcd),a(bc)d,((ab)c)d,a(b(cd)),(a(bc))d,a((bc)d)
縺ｮ蝣ｴ蜷医ｒ謖�＠縺ｾ縺吶€�
莉･荳九�貍皮ｮ励〒縲（,j,k縺ｮ蝣ｴ謇€縺ｫ縺ｯ縲∬ｨ伜捷��+,-,*�峨′蜈･繧九€ょ�繧頑婿縺ｯ縺昴ｌ縺槭ｌ縺ｮ蝣ｴ蜷医〒27騾壹ｊ縺ゅｋ縲�

#abcd縺ｮ蝣ｴ蜷�
for i in + - '*'
 do
for j in + - '*'
do
for k in + - '*'
do
ans=$(( $n1 $i $n2 $j $n3 $k $n4 ))
if [ $ans = 10 ] ;then 
echo  " $n1 $i $n2 $j $n3 $k $n4 " >>quiz2.txt
 
fi

 done
 done
 done


#(ab)cd縺ｮ蝣ｴ蜷�
for i in + - '*'
 do
for j in + - '*'
 do
for k in + - '*'
 do
ans=$(( $(( $n1 $i $n2 )) $j $n3 $k $n4 ))
if [ $ans = 10 ] ;then
echo  " ( $n1 $i $n2 ) $j $n3 $k $n4 " >>quiz2.txt

fi
 done
 done
 done


#ab(cd)縺ｮ蝣ｴ蜷�
for i in + - '*'
 do
for j in + - '*'
 do
for k in + - '*'
 do
ans=$(( $n1 $i $n2 $j $(( $n3 $k $n4 )) ))
if [ $ans = 10 ] ;then
echo  " $n1 $i $n2 $j ($n3 $k $n4) " >>quiz2.txt

fi

 done
 done
 done


#(ab)(cd)縺ｮ蝣ｴ蜷�
for i in + - '*'
 do
for j in + - '*'
 do
for k in + - '*'
 do
ans=$(( $(($n1 $i $n2 )) $j $(( $n3 $k $n4 )) ))
if [ $ans = 10 ] ;then
echo  "  ($n1 $i $n2 ) $j ( $n3 $k $n4 ) " >>quiz2.txt

fi

 done
 done
 done


#(abc)d縺ｮ蝣ｴ蜷�
for i in + - '*'
 do
for j in + - '*'
 do
for k in + - '*'
 do
ans=$(( $(( $n1 $i $n2 $j $n3 )) $k $n4 ))
if [ $ans = 10 ] ;then
echo  "  ( $n1 $i $n2 $j $n3 )$k $n4 " >>quiz2.txt

fi

 done
 done
 done


#a(bcd)縺ｮ蝣ｴ蜷�
for i in + - '*'
 do
for j in + - '*'
 do
for k in + - '*'
 do
ans=$(( $n1 $i $(( $n2 $j $n3 $k $n4 )) ))
if [ $ans = 10 ] ;then
echo  " $n1 $i ( $n2 $j $n3 $k $n4 ) " >>quiz2.txt

fi

 done
 done
 done


#a(bc)d縺ｮ蝣ｴ蜷�
for i in + - '*'
 do
for j in + - '*'
 do
for k in + - '*'
 do
ans=$(( $n1 $i $(( $n2 $j $n3 )) $k $n4 ))
if [ $ans = 10 ] ;then
echo  " $n1 $i ( $n2 $j $n3 ) $k $n4 " >>quiz2.txt

fi

 done
 done
 done


#((ab)c)d縺ｮ蝣ｴ蜷�
for i in + - '*'
 do
for j in + - '*'
 do
for k in + - '*'
 do
ans=$(( $(( $(( $n1 $i $n2 )) $j $n3 )) $k $n4 ))
if [ $ans = 10 ] ;then
echo  " ( ( $n1 $i $n2 ) $j $n3 ) $k $n4 " >>quiz2.txt

fi

 done
 done
 done


#a(b(cd))縺ｮ蝣ｴ蜷�
for i in + - '*'
 do
for j in + - '*'
 do
for k in + - '*'
 do
ans=$(( $n1 $i $(( $n2 $j $(( $n3 $k $n4)) )) ))
if [ $ans = 10 ] ;then
echo  " $n1 $i ( $n2 $j ( $n3 $k $n4 ) ) " >>quiz2.txt

fi

 done
 done
 done


#(a(bc))d縺ｮ蝣ｴ蜷�
for i in + - '*'
 do
for j in + - '*'
 do
for k in + - '*'
 do
ans=$(( $(( $n1 $i $(( $n2 $j $n3)) )) $k $n4 ))
if [ $ans = 10 ] ;then
echo  " ( $n1 $i ( $n2 $j $n3 ) ) $k $n4 " >>quiz2.txt

fi

 done
 done
 done


#a((bc)d)縺ｮ蝣ｴ蜷�
for i in + - '*'
 do
for j in + - '*'
 do
for k in + - '*'
 do
ans=$(( $n1 $i $(( $(( $n2 $j $n3 )) $k $n4 )) ))
if [ $ans = 10 ] ;then
echo  " $n1 $i ( ( $n2 $j $n3 ) $k $n4 ) " >>quiz2.txt

fi

 done
 done
 done


#cat縺ｧ螳滄圀縺ｫ菴懊ｉ縺帙◆蠑上ｒ陦ｨ遉ｺ縺輔○繧九€�
#縺薙％縺ｧ縲�10繧剃ｽ懊ｋ蠑上ｒ菴懊ｌ縺ｪ縺九▲縺溘↑繧峨�縲√％縺ｮ謨ｰ蟄励〒縺ｯ10繧剃ｽ懊ｌ縺ｾ縺帙ｓ縺ｨ縺�≧譁�ｫ�繧定｡ｨ遉ｺ縺輔○繧九€�


if test -s quiz2.txt
then cat quiz2.txt
else echo "Can't Make 10"
fi