number = input()

number_list =list(number)

DDD = {"A" :"10" ,"B" :"11","C":"12","D":"13","E":"14","F":"15","G":"16","H":"17","I":"34","J":"18","K":"19","L":"20","M":"21","N":"22","O":"35","P":"23","Q":"24","R":"25","S":"26","T":"27","U":"28","V":"29","W":"32","X":"30","Y":"31","Z":"33"}

number_list[0] = DDD[number_list[0]]

run_time_1 = len(number_list)

for run in range(run_time_1):

    number_list[run] = eval(number_list[run])

ans = ""

for run in range(run_time_1):

    ans += str(number_list[run])

ans = list(ans)

ans = ans[::-1]

for run in range(len(ans)):

    ans[run] = eval(ans[run])

for run in range(len(ans)-2):

    ans[run+1] = ans[run+1] * (run+1)

chcek_num = 0

for run in range(len(ans)):

    chcek_num += ans[run]

check = chcek_num % 10

if check == 0 :

    print ("real")

else :

    print ("fake")

不用那麼難吧！