# coding: utf-8
# Your code here!
n = int(input())
s = [c for c in input().rstrip().split()]
t = [c for c in input().rstrip().split()]
for s1, t1 in enumerate(zip(s, t), start=1):
    if t1[0] != t1[1]:
        print(s1)
        print(t1[0])
        print(t1[1])