Solving ternary equations with Python

Afternoon Group of friends on a problem, the following posted figure:

Just for a while, the answers of the great gods began to gush out, and the following answers were posted:

1:for i in {111..999..111}

2:do

3:

4:for j in {1..9..1}

5:do

6:c= ' expr $i/$j '

7:

8:pd= ' echo $i $j $c '

9:sz= ' echo $pd | awk ' {print $, substr ($3,1,1)} '

10:v_1= ' echo $sz | awk ' {print $} '

11:v_2= ' echo $sz | awk ' {print $} '

12:

13:v_length= ' echo $c | awk ' {print length ($)} '

14:if [$v _length-eq 2];then

15:if [$v _1-eq $v _2];then

16:echo $i $j $c

17:fi

#echo $v _1 $v _2

19:fi

20:done

It's the first version of the shell.
Here's another shell version:

1: #!/bin/bash

2:for ((i=1;i<=9;i++));d o

3:for ((y=0;y<=9;y++));d o

4:a= $i $y

5:b= $i

6:c=$ (($a * $b))

7:

8:len= ' Expr length $c '

9:if [$len = "3"-a ' echo $c | cut-b 1 ' = ' echo $c | cut-b 2 '];then

10:if [' Echo $c | cut-b 2 ' = ' echo $c | cut-b 3 '];then

11:echo $a * $b = $c

12:

13:fi

14:fi

15:

16:done

17:done