class Problem0547:
    def solve(this):
        n = int(input())
        s = input().split()
        t = input().split()

        for i in range(len(s)):
            if s[i] != t[i]:
                print(i + 1)
                print(s[i])
                print(t[i])

if __name__ == "__main__":
    problem = Problem0547()
    problem.solve()