function v=cardrun

num=50;
p1=[80,75,50];
k=randperm(3);
p=p1(k(1));
numones=round(num*(p/100))

d1=ones(1,numones);
d2=zeros(1,num-numones);

D=[d1,d2];
idx=randperm(num);
D=D(idx);
D=D(:);

choices=zeros(num,1);
win=0;

for i=1:num
    b=D(i);
    a=input('Will the next number be 0 or 1\n\n');
    if length(a)==0
      fprintf('Please input a 0 or a 1\n');
      a=input('Will the next number be a 0 or a 1\n\n');
    end

    choices(i)=a;
    if a==b
        fprintf('You won!  \n\n');
        win=win+1;
    else
        fprintf('Sorry, that was incorrect.  Please try again...\n');
    end
end
fprintf('Game over\n');
y(1)=p;
y(2)=100*(win/num);
v.win=y;
v.choice=choices;
v.cards=D;