rprogn, 128 bytes

Result

WA

Duration

497ms

Code [DL]

read "%d+" ↔ pop a = pop b = pop c = [
read "%d+" ↔ pop d = pop e = pop f = [
read "%d+" ↔ pop g = pop h = pop i = [
mem I

stdin

84 98 75
54 98 85
03 85 75
81 03 86

stdout

--------------------
MEMORY DUMP
--------------------
--------------------

stderr

/usr/bin/lua5.3: main.lua:1330: ERROR: "main.lua:521: attempt to index a nil value (local 'a')" AT WORD 8, 'pop'
stack traceback:
	[C]: in function 'error'
	main.lua:1330: in local 'stuff'
	main.lua:1356: in function 'rpn'
	main.lua:1374: in main chunk
	[C]: in ?

strace