4 1 -2 -3
-2 -3 6 4
3 -4 5 2
5 2 3 7
= 0 1 0 0
10 -3 0 -2
19 -4 -3 -10
-3 2 7 13
=(-1)× 10 0 -2
19 -3 -10
-3 7 13
=(-1)× 0 0 -2
-31 -3 -10
62 7 13
=(-1)×(-2)× -31 -3
62 7
=2×(-31)×7-(-3)×62
=-434+186
=-248