[37+(-66)+(-54)]-[(-67)-(-37)-66]
= [37-66-54]-[(-67)+37-66]
=37-66-54+67-37+66
=(37-37)+[(-66)+66]+[(-54)+67]
=0+0+13
=13
[37+(-66)+(-54)]-[(-67)-(-37)-66]
= [37-66-54]-[(-67)+37-66]
=37-66-54+67-37+66
=(37-37)+[(-66)+66]+[(-54)+67]
=0+0+13
=13
:)))^^^