def read$\_$file$($file$)$:

d$1=\{\}$

with open$($file$,\text{'}$r$\text{'},$encoding$=$'utf$-8\text{'})$ as infile:

lines $=$ infile.readlines$()$

for index in range$(0,$ len$($lines$)-1,2)$:

if lines$[$index$].$strip$()==\text{'}\text{'}$:

continue

cnt $=$ int$($lines$[$index$].$strip$())$

shw $=$ lines$[$index $+1].$strip$()$

if cnt in d$1.$keys$()$:

sh$\_$list $=$ d$1.$get$($cnt$)$

sh$\_$list.append$($shw$)$

else:

d$1[$cnt$]=[$shw$]$

return d$1$

def out$\_$key$($d$1,$ filename$)$:

with open$($filename$,\text{'}$w$+\text{'})$ as q:

for key in sorted$($d$1.$keys$())$:

q$.$write$(\text{'}\{\}$: $\{\}$

$\text{'}.$format$($key$,\text{'}$; $\text{'}.$join$($d$1.$get$($key$))))$

print$(\text{'}\{\}$: $\{\}\text{'}.$format$($key$,\text{'}$; $\text{'}.$join$($d$1.$get$($key$))))$

def out$\_$title$($d$1,$ filename$)$:

ttl $=[]$

for title in d$1.$values$()$:

ttl$.$extend$($title$)$

with open$($filename$,\text{'}$w$+\text{'})$ as outfile:

for title in sorted$($ttl$)$:

outfile.write$(\text{'}\{\}$

$\text{'}.$format$($title$))$

print$($title$)$

def main$($x$)$:

f$\_$name $=$ x

d$1=$ read$\_$file$($f$\_$name$)$

if d$1$ is None:

print$(\text{'}$Error: Entered file does not exist!: $\{\}\text{'}.$format$($f$\_$name$))$

return

out$\_$file$1=$ 'output$\_$keys.txt$\text{'}$

out$\_$file$2=$ 'output$\_$titles.txt$\text{'}$

out$\_$key$($d$1,$ out$\_$file$1)$

out$\_$title$($d$1,$ out$\_$file$2)$

print$(\text{'}$Entere input file name: $\text{'})$

user$\_$input $=$ input$()$

main$($user$\_$input$)$