let wordCount = Int(readLine()!)

let line1 = readLine()!.split(separator: " ")
let line2 = readLine()!.split(separator: " ")

for i in 0..<line1.count {
    if(line1[i] != line2[i]) {
        print(i+1)
        print(line1[i])
        print(line2[i])
    }
}