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bin(x));
sum(n(j):x*(r(j)+r(i)))*5+@sum(n(j):x*d(i,j))/50<=10);
sum(h(i):x)=1);
sum(n(j):x)=1);
sum(n(i): x(j))+@sum(h(i): x(i))<=1);
sum(h(i):x)+@sum(n(i):x)<=9);
sum(n(i):x*(r(i)+r(j)))/2>=0.8;
bin(x));
sum(n(j):x*(r(j)+r(i)))*5+@sum(n(j):x*d(i,j))/50<=10);
sum(h(i):x)=1);
sum(n(j):x)=1);
sum(n(i): x(j))+@sum(h(i): x(i))<=1);
sum(h(i):x)+@sum(n(i):x)<=9);
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