Can anyone tell me why the corresponding element in the program output is larger than the defined maximum value?

Question

import randomdict1={'2':2,"3":3,"4":4,'5':5,'6':6,"7":7,'8':8,'9':9,'10':10,"J":11,       "Q":12,"K":13,'A':14,'小王':15,'大王':16}dict2={'2':4,"3":4,"4":4,'5':4,'6':4,"7":4,'8':4,'9':4,'10':4,"J":4,       "Q":4,"K":4,'A':4,'小':1,'大':1}h=0deck=[]while h<17:       (a,b)=random.choice(list(dict2.items()))       try:           h=h 1           deck=deck [a]           b=b-1           dict2[a]=b       except b<1:              h=hdeck=sorted(deck)print('',deck)