package main

import (
    "fmt"
)

func main() {
    list := [10]bool{true, true, true, true, true, true, true, true, true, true}
    var n int
    fmt.Scan(&n)
    for i := 0; i < n; i++ {
        var a, b, c, d int
        var r string
        fmt.Scan(&a, &b, &c, &d, &r)
        if r == "YES" {
            for x := 0; x < 10; x++ {
                if list[x] == true && x != a && x != b && x != c && x != d {
                    list[x] = false
                }
            }
        } else {
            for x := 0; x < 10; x++ {
                if list[x] == true && (x == a || x == b || x == c || x == d) {
                    list[x] = false
                }
            }
        }
    }
    for x := 0; x < 10; x++ {
        if list[x] == true {
            fmt.Println(x)
        }
    }
}