def reverse( x )
	work = []
	x.length.times { |i|
		work[ x.length-i-1 ] = x[ i ]
	}
	return work
end

a = [ 3 , 6 , 2 , 4 , 10 , 7 ]
b = reverse( a )

b.length.times { |i|
	printf( "%d " , b[ i ] )
}
printf( "\n" )