days=1500;
p=[125,125,150,175,175];
q=[150,250,250,250,300];
cost=[0,0,0,0,0];
arrivalinterval=2;
storagefee=0.75;
lossfee=1.8;
bookfee=75;
storage0=115;
booknumber=0;
arrivedate=0;
nr=rand(days,1);
for i=1:5
    storage(1)=storage0;