第一次学习lingo，不懂下面这条加了注释的语句为什么报错
model:
sets:
S/1..3/:x,y,a,b,c;
endsets
data:
a=2,3,4;
c=280,250,400;
b=1.5,3,5;
enddata
M=100000;
max=@sum(S(i):a(i)*x(i));
@sum(S(i):b(i)*x(i))<=600;
@sum(S(i):c(i)*x(i))<=60000;
@for(S(i):@bin(y(i)));
!@for(S(i):80*y(i)<x(i) #or# x(i)<M*y(i));
@for(S(i):@gin(x(i)));
end
你把截图发过来我