a,b=map(int,input().split())
for i in range (a,b+1):
    if(i%3==0):
        print(i)
    else:
        k=str(i)
        b=j=0
        while(b==0 and j<len(str(i))):
            if(k[j]=="3"):
                print(i)
                b=1
            j+=1