word_num = int(input())

input_text1 = input()
input_list1 = input_text1.split()

input_text2 = input()
input_list2 = input_text2.split()

for i in range(word_num):
    if input_list1[i] != input_list2[i]:
        break

print(i+1)
print(input_list1[i])
print(input_list2[i])