Go: package main

import (
	"bufio"
	"os"
	"strings"
	"strconv"
	"sort"
	"fmt"
)

var scanner = bufio.NewScanner(os.Stdin)

func main() {
	for scanner.Scan() {
		input := strings.Split(scanner.Text(), ",")
		cards := make([]int, 5)
		for i :=range input {
			cards[i], _ = strconv.Atoi(input[i])
		}
		sort.Sort(sort.IntSlice(cards))
		if cards[0] == cards[1] && cards[2] == cards[3] && cards[2] == cards[1] {
			fmt.Println("four card")
		} else if cards[1] == cards[2] && cards[3] == cards[4] && cards[3] == cards[2]{
			fmt.Println("four card")
		} else if cards[0] == cards[1] && cards[1] == cards[2] && cards[3] == cards[4] {
			fmt.Println("full house")
		} else if cards[0] == cards[1] && cards[2] == cards[3] && cards[3] == cards[4] {
			fmt.Println("full house")
		} else if cards[0] == 1 && cards[1] == 10 && cards[2] == 11 && cards[3] == 12 && cards[4] == 13 {
			fmt.Println("straight")
		} else if cards[0]+1 == cards[1] && cards[1]+1 == cards[2] && cards[2]+1 == cards[3] && cards[3]+1 == cards[4] {
			fmt.Println("straight")
		} else if (cards[0] == cards[1] && cards[1] == cards[2]) || (cards[1] == cards[2] && cards[2] == cards[3]) || (cards[2] == cards[3] && cards[3] == cards[4]) {
			fmt.Println("three card")
		} else if ((cards[0] == cards[1]) && ((cards[2] == cards[3]) || (cards[3] == cards[4]))) || ((cards[1] == cards[2]) && (cards[3] == cards[4])) {
			fmt.Println("two pair")
		} else if cards[0] == cards[1] || cards[1] == cards[2] || cards[2] == cards[3] || cards[3] == cards[4] {
			fmt.Println("one pair")
		} else {
			fmt.Println("null")
		}
	}
}

C++: #include <stdio.h>
#include <iostream>
 
using namespace std;
 
int main() {
 
    int a[5];
    int kari;
    char d;
     
    while (cin >> a[0] >> d >> a[1] >> d >> a[2] >> d >> a[3] >> d >> a[4]) {
        for (int i = 4; i > 0; i--) {
            for (int j = 0; j < i; j++) {
                if (a[j] > a[j+1]) {
                    kari = a[j];
                    a[j] = a[j+1];
                    a[j+1] = kari;
                }
            }
        }
        if (a[0] == a[1] || a[1] == a[2] || a[2] == a[3] || a[3] == a[4]) { //one pair
            if ((a[0] == a[1] && a[1] == a[2]) || (a[1] == a[2] && a[2] == a[3]) || (a[2] == a[3] && a[3] == a[4])) { //two pair
                if (((a[0] == a[1] && a[1] == a[2]) && (a[3] == a[4])) || ((a[0] == a[1]) && (a[2] == a[3] && a[3] == a[4]))) { //full house
                    cout << "full house" << endl; 
                } else if ((a[0] == a[1] && a[1] == a[2] && a[3]==a[4]) || (a[1] == a[2] && a[2] == a[3] && a[3] == a[4])){ //four card
                    cout << "four card" << endl;
                }else {
                    cout << "three card" << endl;
                }
            } else if ((a[0] == a[1] && a[2] == a[3]) || (a[0] == a[1] && a[3] == a[4]) || (a[1] == a[2] && a[3] == a[4])) {
                if ((a[0] == a[1] && a[1] == a[2] && a[2] == a[3]) || (a[1] == a[2] && a[2] == a[3] && a[3] == a[4])) {
                    cout << "four card" << endl;
                } else {
                    cout << "two pair" << endl;
                }
            } else {
                cout << "one pair" << endl;
            }
        } else if ((a[1] == a[0] + 1 && a[2] == a[1] + 1 && a[3] == a[2] + 1 && a[4] == a[3] + 1) || (a[0]  == 1 && a[1] == 10 && a[2] == a[1] + 1 && a[3] == a[2] + 1 && a[4] == a[3] + 1)){
            cout << "straight" << endl;
        } else {
            cout << "null" << endl;
        }
    }
    return 0;
}

C++: #include "bits/stdc++.h"

#define REP(i,num) for(int i=0;i<(num);++i)
#define LOOP(i) while(i--)
#define ALL(c) c.begin(),c.end()
#define PRINTALL(c) for(auto& x:c){cout<<x<<' ';}cout<<endl;
#define PAIRCOMP(c,comp) [](const pair<ll,ll>& lhs,const pair<ll,ll>& rhs){return lhs.c comp rhs.c;}

using namespace std;
using ll = long long;

constexpr ll atcoder_mod = 1e9+7;

template<typename T=int>
T in(){T x; cin >> x; return (x);}
template<typename T=int,typename C=vector<T>>
C vecin(int N){C x(N);REP(i,N){x[i]=in<T>();}return move(x);}

void vout(){cout << endl;}
template<typename Head,typename... Tail>
void vout(Head&& h,Tail&&... t){cout << ' ' << h;vout(forward<Tail>(t)...);}
void out(){cout << endl;}
template<typename Head,typename... Tail>
void out(Head&& h,Tail&&... t){cout << h;vout(forward<Tail>(t)...);}

vector<string> split_naive(const string &s, char delim) {
	vector<string> elems;
	string item;
	for(char ch:s){
		if(ch==delim){
			if(!item.empty()) elems.push_back(item);
			item.clear();
		}
		else{
			item += ch;
		}
	}
	if(!item.empty()) elems.push_back(item);
	return elems;
}

int main(){
	//cin.tie(0);
	//ios::sync_with_stdio(false);
	
	string S;
	while(cin>>S){
		auto SS=split_naive(S,',');
		vector<int> C(5);
		map<int,int> M;
		REP(i,5){
			sscanf(SS[i].c_str(),"%d",&C[i]);
			M[C[i]]++;
		}
		sort(ALL(C));
		
		int two=0,three=0,four=0;
		for(auto& x:M){
			if(x.second==2) two++;
			else if(x.second==3) three++;
			else if(x.second==4) four++;
		}
		if(four){
			out("four card");
		}
		else if(three){
			if(two){
				out("full house");
			}
			else{
				out("three card");
			}
		}
		else if(two){
			if(two==2){
				out("two pair");
			}
			else{
				out("one pair");
			}
		}
		else{
			bool straight = true;
			if(C[0]==1){
				if(C[1]==2 || C[1]==10){
					for(int i=1;i<4;i++){
						if(C[i+1]!=C[i]+1){
							straight = false;
							break;
						}
					}
				}
				else{
					straight = false;
				}
			}
			else{
				REP(i,4){
					if(C[i+1]!=C[i]+1){
						straight = false;
						break;
					}
				}
			}
			if(straight){
				out("straight");
			}
			else{
				out("null");
			}
		}
	}
	return 0;
}

C++: #include <bits/stdc++.h>
using namespace std;

inline int toInt(string s) {int v; istringstream sin(s);sin>>v;return v;}
template<class T> inline string toString(T x) {ostringstream sout;sout<<x;return sout.str();}

template<class T> inline T sqr(T x) {return x*x;}

typedef vector<int> VI;
typedef vector<VI> VVI;
typedef vector<string> VS;
typedef pair<int, int> PII;
typedef long long LL;
typedef unsigned long long ULL;

#define ALL(a)  (a).begin(),(a).end()
#define RALL(a) (a).rbegin(), (a).rend()
#define PB push_back
#define MP make_pair
#define SZ(a) int((a).size())
#define EACH(i,c) for(typeof((c).begin()) i=(c).begin(); i!=(c).end(); ++i)
#define EXIST(s,e) ((s).find(e)!=(s).end())
#define SORT(c) sort((c).begin(),(c).end())

#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n)  FOR(i,0,n)

const double EPS = 1e-10;
const double PI  = acos(-1.0);

#define CLR(a) memset((a), 0 ,sizeof(a))

#define dump(x)  cerr << #x << " = " << (x) << endl;
#define debug(x) cerr << #x << " = " << (x) << " (L" << __LINE__ << ")" << " " << __FILE__ << endl;

int dx[4] = {-1, 0, 1, 0};
int dy[4] = {0, -1, 0, 1};

int main() {
  int c[5];

  while(scanf("%d,%d,%d,%d,%d", &c[0], &c[1], &c[2], &c[3], &c[4]) != EOF) {
    int n[13] = {};
    REP(i, 5) n[c[i]-1]++;

    int first = 0, second = 0, straight = 0;
    REP(i, 13) {
      if(n[i] > 0 && n[(i+1)%13] > 0) 
	straight++;
      if(first < n[i]) {
	second = first;
	first = n[i];
      } else if(second < n[i]) {
	second = n[i];
      }
    }

    if(first == 4) cout << "four card" << endl;
    else if(first == 3) {
      if(second == 2) cout << "full house" << endl;
      else cout << "three card" << endl;
    }
    else if(straight == 4 ) {
      if(n[12] > 0 && n[0] > 0 && n[1] > 0) cout << "null" << endl;
      else cout << "straight" << endl;
    }
    else if(first == 2 && second == 2) cout << "two pair" << endl;
    else if(first == 2) cout << "one pair" << endl;
    else cout << "null" << endl;
  }
}