spyder debugging stops at the first line

Question

this is my code

a= 1+10
b =1+20
c=1+5
print(a)
print ('hello')

I set breakpoints on line 3 and line 5. However, when i run Debug (Ctrl + F5) in a Spyder Console, it got stuck as shown below even after I updated my Spyder:

----> 1 a= 1+10
      2 b =1+20
      3 c=1+5
      4 print(a)
      5 print ('hello')

ipdb>