maybelater, 582 bytes

Result

WA

Duration

745ms

Code [DL]

when q is 0{
p=readall a
x=(48-(ord p[1]))+10*(48-(ord p))
y=(48-(ord p[4]))+10*(48-(ord p[3]))
z=(48-(ord p[7]))+10*(48-(ord p[6]))
a=x+((ord p[10])-48)+10*((ord p[9])-48)
b=y+((ord p[13])-48)+10*((ord p[12])-48)
c=z+((ord p[16])-48)+10*((ord p[15])-48)
d=x+((ord p[19])-48)+10*((ord p[18])-48)
e=y+((ord p[22])-48)+10*((ord p[21])-48)
f=z+((ord p[25])-48)+10*((ord p[24])-48)
g=x+((ord p[28])-48)+10*((ord p[27])-48)
h=y+((ord p[31])-48)+10*((ord p[30])-48)
i=z+((ord p[34])-48)+10*((ord p[33])-48)
j=a*e*i
m=a*f*h
k=b*f*g
n=b*d*i
l=c*d*h
o=c*e*g
p=m+n+o
q=(j+k+l-p)/6
}
print q=0

stdin

97 35 42
09 06 15
19 32 89
05 97 52

stdout

stderr

/root/MaybeLater/interpreter.js:403
		return val[0].charCodeAt(0);
		              ^

TypeError: Cannot read property 'charCodeAt' of undefined
    at eventaction (/root/MaybeLater/interpreter.js:403:17)
    at parseExpression (/root/MaybeLater/interpreter.js:62:10)
    at parseExpression (/root/MaybeLater/interpreter.js:29:10)
    at parseExpression (/root/MaybeLater/interpreter.js:56:10)
    at parseExpression (/root/MaybeLater/interpreter.js:26:10)
    at parseArithmatic (/root/MaybeLater/interpreter.js:176:14)
    at parseExpression (/root/MaybeLater/interpreter.js:41:10)
    at parseExpression (/root/MaybeLater/interpreter.js:29:10)
    at parseArithmatic (/root/MaybeLater/interpreter.js:184:10)
    at parseExpression (/root/MaybeLater/interpreter.js:41:10)

strace