numbers:

$4267954177$

merge$\_$sort$($numbers$,0,4)$ is called. merge$()$ is called to merge the following partitions:

Merge call # Left partition Right partition

$1($a$)($b$)$

$242,6795$

$3($c$)($d$)$

$442,67,9541,77$

Fill in the missing values.$($a$)($b$)($c$)($d$)($commas between values, if applicable$)$