Example
16.4.1
x={5 12 19,
3
9 -21,
5 7
14,
-2
4 19,
4 -2 -11,
0 5 14,
-6 15
4,
1 -8
9,
3
4 4,
3
2 -31,
0 1
.,
3
7 .,
4
8 .,
-3 10
.,
5 -1
.,
5
. .,
5
. .,
3
. .,
5
. .,
5
. .};