cities $=\{$

'Toronto': $5259,$

'Rome': $982,$

'London': $550,$

'Paris': $584,$

'Nairobi': $3435,$

'Chicago': $309,$

$\}$

best $=\text{'}\text{'}$

distance $=0$

for city in cities:

if cities$[$city$]>$ distance:

best $=$ city

distance $=$ cities$[$city$]$

print$($best$,$ distance$)$