package main

import "fmt"

func main() {
    ok := [10]bool{}
    for i, _ := range ok {
        ok[i] = 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 j := 0; j < 10; j++ {
                if j != a && j != b && j != c && j != d {
                    ok[j] = false
                }
            }
        } else {
            for _, e := range [4]int{a, b, c, d} {
                ok[e] = false
            }
        }
    }

    for i, e := range ok {
        if e {
            fmt.Println(i)
        }
    }
}