#1014
a=input()
b=input()

tmp=a
a=b
b=tmp

print(a,b)

#1023
num=float(input())

i=int(num)
f=num-i

print("%d\\n%f\\n"%(i,f))

#1025
five_num = int(input())

i = 4  

while i > -1:
    rest = five_num // (10 ** i)  
    print("[%d]"%(rest * (10 ** i)))  
    five_num %= (10 ** i)  
    i -= 1      
#1024
word=input() #문자열입력

for alphabet in word :
    print("'%c'"%alphabet)
#1418
word=input() #문자열입력
i=1 #t의 위치를 알려줄 인덱스
for alphabet_t in word :
     if (alphabet_t=='t') :
       print(i,end=" ")
     i+=1
#1407
word=input() #문자열입력
word_list=list(word) #값 수정위해 배열로 바꿈
for alphabet in word :
    if (alphabet==' ') :
        word_list.remove(alphabet)
#출력
for alphabet in word_list :
    print(alphabet,end="")
#2721
word1=input()
word2=input()
word3=input()

#각 문자열 맨마지막 인덱스 번호 구하기
i1=-1
i2=-1
i3=-1

for alphabet in word1 :
    i1+=1
for alphabet in word2 :
    i2+=1
for alphabet in word3 :
    i3+=1

#순환문자열인지판단
#문자열값 서로 비교하기 위해 배열로 변환
word1_list=list(word1)
word2_list=list(word2)
word3_list=list(word3)

if (word1_list[0]==word3_list[i3] and word1_list[i1]==word2_list[0] and word2_list[i2]==word3_list[0]) :
    print("good")
else :
    print("bad")