Endless While Loop

def quadTree():
  size = int(input(print("Enter a size: "))) #size will be 8
  box = [[] for i in range(size)]

  while(len(box) < 9):
    entry = input(print("Enter 0 or 1 for colors: ")) #EX: 00000000, 11111111, or 10101010
    for i in range(size):
      for j in range(size):
        box[i].append(entry)
  print(box)



quadTree()