main Diagonal of X

n=int(input())

l=[list(map(int,input().split())) for i in range(n)]

x=int(input())

t=[]

for i in range(n):

    if x in l[i]:

        k=l[i].index(x)

        ii=i

        break

p=min(ii,k)

ii-=p;k-=p

while ii<n and k<n:

    print(l[ii][k],end=' ')

    ii+=1;k+=1