#!/usr/local/bin/perl
# -*- perl -*-

while ( <STDIN> ) {
    @line = split;
    $i = 0;
    foreach $val1 ( @line ) {
	$j = 0;
	foreach $val2 ( @line ) {
	    $cross{$i,$j} += $val1 * $val2;
	    $j++;
	}
	$i++;
    }
}

$rows = $j - 1;
$cols = $j;


#foreach $row ( 0 .. $rows - 1 ) {
#    foreach $col ( 0 .. $cols - 1) {
#	printf "%8d", $cross{$row,$col};
#    }
#    print "\n";
#}

# forward elimination

foreach $row1 (0 .. $rows - 2) {
    foreach $row2 ( $row1 + 1 .. $rows - 1) {
	$coeff = - $cross{$row2,$row1} / $cross{$row1,$row1};
	$cross{$row2,$row1} = 0;
	foreach $col ( $row1 + 1 .. $cols - 1 ) {
	    $cross{$row2,$col} += $coeff * $cross{$row1,$col};
	}
    }
}

# backward substitution

foreach $i (1 .. $rows) {
    $row = $rows - $i;
    $val = $cross{$row, $cols - 1};
    foreach $col ( $row + 1 .. $cols - 2 ) {
	$val -= $sol[$col] * $cross{$row,$col};
    }
    $sol[$row] = $val / $cross{$row,$row};
}

# print answer

print "@sol\n";