1)
A = []
N = int(input())
for i in range(N):
A.append(int(input()))
for i in range(0,N,2): #0 тоже четное, поэтому выводим с A[0]
print(A[i])
2)
A = []
saves = 0
for i in range(10):
A.append(int(input()))
for i in range(10):
if A[i] == A[10]:
saves == A[i]
print(saves)