J,  40  37 bytes

my 40 byte expression (1), improved below

u:30+2>.(+:@i.@(2&+)(-*(>+:))"0 _|@i:)47

(1) thanks to +Galen Ivanov & +Conor O'Brien for the ideas in their solutions

shorter version including echo statement

echo u:32+|.(~.(>:*+:@[-])"0 _])|i:47

TIO

J,  40 37 32 bytes

40 expression u:30+2>.(+:@i.@(2&+)(-*(>+:))"0 _|@i:)47 thanks to +Galen Ivanov & +Conor O'Brien for the ideas in their solutions

37 included echo echo u:32+|.(~.(>:*+:@[-])"0 _])|i:47

echo u:32+|.(~.(>:*[+-)"{])|i:47

incorporating @FrownyFrog tips from comments

TIO

J, 40 bytes

output is from evaluating this expression, e.g in a repl

u:30+2>.(+:@i.@(2&+)(-*(>+:))"0 _|@i:)47

TIO

thanks to +Galen Ivanov & +Conor O'Brien for the ideas in their solutions

J,  40  37 bytes

my 40 byte expression (1), improved below

u:30+2>.(+:@i.@(2&+)(-*(>+:))"0 _|@i:)47

(1) thanks to +Galen Ivanov & +Conor O'Brien for the ideas in their solutions

shorter version including echo statement

echo u:32+|.(~.(>:*+:@[-])"0 _])|i:47

TIO