rprogn, 93 bytes

Result

WA

Duration

476ms

Code [DL]

read "v1" =
read "v2" =
read "v3" =
read "v4" =

v1 2 index
v1 3 index
v1 4 index
v1 5 index

stdin

99 65 96
55 40 98
37 85 12
12 02 32

stdout

5
6
 
9

stderr

strace