#!/bin/awk -f

BEGIN { i=0; } {
if (i==0) {a=$1;b=$2;c=$3; i=i+1;} else
if (i==1) {d=$1;e=$2;f=$3; i=i+1;} else
if (i==2) {g=$1;h=$2;I=$3; i=i+1;} }
END {
det=a*e*I+b*f*g+c*d*h-a*f*h-b*d*I-c*e*g;
printf("%f\t%f\n",det,1/det);}