Problem: Create a program that reads poker hand data and outputs the role for each. However, this issue follows the rules below.

* Poker is a competition with 5 playing cards.
* No more than 5 cards with the same number.
* There is no joker.
* Suppose you only consider the following poker roles: (The higher the number, the higher the role.)


1. No role (does not apply to any of the following)
2. One pair (two cards with the same number)
3. Two pairs (two pairs of cards with the same number)
4. Three cards (one set of three cards with the same number)
5. Straight (the numbers on 5 cards are consecutive)
However, in the case of a straight containing A, the sequence ending with A is also straight. In other words, there are two types of straights containing A: A 2 3 4 5 and 10 J Q K A. Lines that straddle A, such as J Q K A 2, are not straight. (In this case, it will be "no role").
6. Full House (one set of three cards with the same number and the other two cards with the same number)
7. Four Cards (one set of four cards with the same number)



Input

The input consists of multiple datasets. Each dataset is given in the following format:


Hand 1, Hand 2, Hand 3, Hand 4, Hand 5


In your hand, Trump's J (jack) is 11, Q (queen) is 12, K (king) is 13, A (ace) is 1, and the others are represented by their respective numbers.

The number of datasets does not exceed 50.

Output

For each dataset, output one of the highest roles you can play in your hand. Follow the output example for the notation of the role.

Example

Input

1,2,3,4,1
2,3,2,3,12
12,13,11,12,12
7,6,7,6,7
3,3,2,3,3
6,7,8,9,10
11,12,10,1,13
11,12,13,1,2


Output

one pair
two pair
three card
full house
four card
straight
straight
null

Solution (in JAVA):

Solution:
import java.util.Arrays;
import java.util.HashMap;
import java.util.Map;
import java.util.Scanner;

public class Main {

    /** データセットの区切り文字 */
    private static final String DELIMITER = ",";

    /** ワンペア */
    private static final String ONE_PAIR = "one pair";

    /** ツーペア */
    private static final String TWO_PAIR = "two pair";

    /** スリーカード */
    private static final String THREE_CARD = "three card";

    /** ストレート */
    private static final String STRAIGHT = "straight";

    /** フルハウス */
    private static final String FULL_HOUSE = "full house";

    /** フォーカード */
    private static final String FOUR_CARD = "four card";

    /**
     * メインメソッド
     *
     * @param args
     */
    public static void main(String[] args) {
        // ローカルテスト用。提出時は"System.in"に修正。
        // try (Scanner scanner = new Scanner(new File(
        //            "D:/Temp/AOJ/0038_PokerHand.txt"))) {
             try (Scanner scanner = new Scanner(System.in)) {
            while (scanner.hasNextLine()) {
                System.out.println(judgeHand(scanner.nextLine()
                        .split(DELIMITER)));
            }
        } catch (Exception e) {
            // 対応しない。
        }
    }

    /**
     * 役を判定する。
     *
     * @param cards データセット1行を格納した配列
     * @return 判定結果
     */
    private static String judgeHand(String[] cards) {
        Map<String, Integer> hands = readHands(cards);

        if (hands.containsValue(4)) {
            return FOUR_CARD;
        }

        if (hands.containsValue(3) && hands.containsValue(2)) {
            return FULL_HOUSE;
        }

        if (hands.containsValue(3)) {
            return THREE_CARD;
        }

        int pairs = countPairs(hands);

        if (pairs == 2) {
            return TWO_PAIR;
        } else if (pairs == 1) {
            return ONE_PAIR;
        }

        // ストレートが成立するときは他の役が成立しないので、最後に判定。
        if (isStraight(hands)) {
            return STRAIGHT;
        }

        return null;
    }

    /**
     * 手札のカードを解析する。
     *
     * @param cards 手札5枚を格納した配列
     * @return keyにカードの数字、valueに同じ数字の枚数を格納したMap
     */
    private static Map<String, Integer> readHands(String[] cards) {
        Map<String, Integer> result = new HashMap<String, Integer>();

        for (String card : cards) {
            int counter = result.containsKey(card) ? result.get(card) + 1 : 1;
            result.put(card, counter);
        }

        return result;
    }

    /**
     * ペアの組数を数える。
     *
     * @param handsMap keyにカードの数字、valueに同じ数字の枚数を格納したMap
     * @return ペアの組数
     */
    private static int countPairs(Map<String, Integer> handsMap) {
        int pairCounter = 0;

        for (Map.Entry<String, Integer> entry : handsMap.entrySet()) {
            if (entry.getValue() == 2) {
                pairCounter++;
            }
        }

        return pairCounter;
    }

    /**
     * ストレートの役が成立するか判定する。
     *
     * @param handsMap keyにカードの数字、valueに同じ数字の枚数を格納したMap
     * @return ストレートが成立する場合に{@code true}、それ以外の場合に{@code false}
     */
    private static boolean isStraight(Map<String, Integer> handsMap) {

        int[] hands = new int[5];

        int counter = 0;
        for (String hand : handsMap.keySet()) {
            hands[counter++] = Integer.parseInt(hand);
        }

        Arrays.sort(hands);

        // 1ずつインクリメントしない組み合わせは1つのみなので先にチェック。
        if (Arrays.equals(new int[] { 1, 10, 11, 12, 13 }, hands)) {
            return true;
        }

        for (int i = 0; i < hands.length - 1; i++) {
            if (hands[i] + 1 != hands[i + 1]) {
                return false;
            }
        }

        return true;
    }
}