// No.547 未知の言語 package main import ( "bufio" "fmt" "os" "strconv" ) var sc = bufio.NewScanner(os.Stdin) var wr = bufio.NewWriter(os.Stdout) func next() string { sc.Scan() return sc.Text() } func nextInt() int { i, _ := strconv.Atoi(next()) return i } func nextFloat() float64 { f, _ := strconv.ParseFloat(next(), 64) return f } func nextInts(n int) []int { ret := make([]int, n) for i := 0; i < n; i++ { ret[i] = nextInt() } return ret } func nextFloats(n int) []float64 { ret := make([]float64, n) for i := 0; i < n; i++ { ret[i] = nextFloat() } return ret } func nextStrings(n int) []string { ret := make([]string, n) for i := 0; i < n; i++ { ret[i] = next() } return ret } func main() { sc.Split(bufio.ScanWords) var n = nextInt() s := nextStrings(n) t := nextStrings(n) for i := 0; i < n; i++ { if s[i] != t[i] { fmt.Println(s[i]) fmt.Println(t[i]) return } } }