import sys
def main():
    text = sys.stdin.readline()
    param =  text.split(" ")
    nam_min = int(param[0])
    nam_max = int(param[1])
    
    nam_target = nam_min
    while nam_target <= nam_max:
        if nam_target % 3 == 0 :
            print(nam_target)
        elif str(nam_target).find("3") != -1:
            print(nam_target)
        nam_target += 1

if __name__ == "__main__":
    main()