#41292: python


suyueh (suyueh)


r=0
t=int(input())
for i in range(1,t+1,1):
  a=int(input())
  b=int(input())
  for x in range(1,b,1):
    if (a-1)<x*x<(b+1):
      r=r+x*x
  print("Case "+str(i)+": "+str(r))
  r=0