How to display all answer and connect result from for loop?

Hello everyone I'm newbie of matlab program,i need some help from you guys. This code below is form loop of my result but it show answer just last step of loop so i want to know how to display all answer. Next question is how can i connect the result for more cleary i will show example result:

For example result

B= 1 2

4×2 uint32 matrix 1 3

1 2 1 4

1 3 2 3

1 4 2 4

B= 2 5

36×2 uint32 matrix

2 3

2 4

2 5

to be like right side

Thank you everyone

for i=0:bond(860)                                %bond is file that include of data    
    a=[bond(i+1,:)];
    B=[repmat(a(1),[length(a)-1 1]) a(2:end)']
end