1((test du papier RAIRO)
2 2 3 4 0 -1 1
3 (#[-1 0 0 0 1 0]
4  #[0 -1 0 0 0 1]
5  #[-2 -1 0 -1 2 1]
6  #[2 1 0 1 -2 -1]
7 )
8 ()
9)
10