a,b=(int(i) for i in input().split())
list=[]
n=0
while a+n<=b:
    list.append(a+n)
    n=n+1

for i in range(len(list)):
    
    if list[i]%3==0:
        print(list[i])
    elif str(list[i]).find("3")>=0:
        print(list[i])
      
    i=i+1