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<iostream>
#include<cstdio>
#include<cstdlib>
using namespace std;
int max(const void* x,const void* y);
int main(){
	for(;;){
		int hand[5];
		if(scanf("%d,%d,%d,%d,%d",&hand[0],&hand[1],&hand[2],&hand[3],&hand[4]) == EOF){break;}
		qsort(hand,5,sizeof(int),max);
		int f = 0;
		for(int i=0; i<5; i++){
			if(hand[i] == hand[i+1] && hand[i+1] == hand[i+2] && hand[i+2] == hand[i+3]){f = 1;i+=3;}
			else if(hand[i] == hand[i+1] && hand[i+1] == hand[i+2]){f += 2;i+=2;}
			else if(hand[i] == hand[i+1]){f += 3;i+=1;}
		}
		if(hand[0]+1 == hand[1] && hand[1]+1 == hand[2] && hand[2]+1 == hand[3] && hand[3]+1 == hand[4]){f = 10;}
		if(hand[0] == 1 && hand[1] == 10 && hand[2] == 11 && hand[3] == 12 && hand[4] == 13){f = 10;}
		if(f == 1){cout <<"four card"<<endl;}
		else if(f == 2){cout <<"three card"<<endl;}
		else if(f == 3){cout <<"one pair"<<endl;}
		else if(f == 6){cout <<"two pair"<<endl;}
		else if(f == 5){cout <<"full house"<<endl;}
		else if(f == 10){cout <<"straight"<<endl;}
		else if(f == 0){cout <<"null"<<endl;}
	}
	return 0;
}
int max(const void* x,const void* y){
	return *(int*)x - *(int*)y;
}

C++: #include<stdio.h>
#include<iostream>
using namespace std;

int main(){
int n[6];
int c=0,cc=0;
bool f=true;
while(scanf("%d,%d,%d,%d,%d",&n[0],&n[1],&n[2],&n[3],&n[4])!=EOF){
for(int i=0;i<5;i++)
for(int j=4;j>i;j--)
if(n[j-1]>n[j]){int t=n[j];n[j]=n[j-1];n[j-1]=t;}

for(int i=0;i<4;i++){
if(n[i]==n[i+1])c++;
else if(c>=1){cc=c;c=0;}
else {c=0;}
}

for(int i=0;i<4;i++){
if(n[i+1]!=(n[i]+1))f=false;
}
if(n[0]==1&&n[1]==10&&n[2]==11&&n[3]==12&&n[4]==13)f=true;





if(c==3)printf("four card\n");
else if(c==2&&cc==1)printf("full house\n");
else if(c==1&&cc==2)printf("full house\n");
else if(f==true)printf("straight\n");
else if(c==2||cc==2)printf("three card\n");
else if(n[0]==n[1]&&n[2]==n[3])printf("two pair\n");
else if(n[0]==n[1]&&n[3]==n[4])printf("two pair\n");
else if(n[1]==n[2]&&n[3]==n[4])printf("two pair\n");
else if(n[0]==n[1]||n[2]==n[3]||n[1]==n[2]||n[3]==n[4])printf("one pair\n");
else printf("null\n");

c=0,cc=0;f=true;
}
return 0;
}

C++: #include <iostream>
#include <string>
#include <vector>
#include <algorithm>
#include <utility>
#include <cstring>
#include <cmath>
#include <queue>
#include <map>
#include <set>
#include <stdio.h>
#include <sstream>
#include <stdlib.h>
#include <math.h>
using namespace std;
 
#define rep(i,n) for(int i=0; i<n; i++)
#define FOR(i,s,n) for(int i=s; i<n; i++)
#define ALL(x) x.begin(), x.end()
#define pb push_back
#define foreach(it,con) for(auto it=con.begin();it!=con.end();it++)
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef vector<int> vi;

string judge(int* nums){
	set<int> st;
	map<int,int> count;
	FOR(i,1,14){
		count[i] = 0;
	}
	rep(i,5){
		st.insert(nums[i]);
		count[nums[i]]++;
	}
	
	bool is2 = false;
	bool is3 = false;
	int c=0;
	int mc=0;
	foreach(it,count){
		if(*it>0){
			c++; 
			mc=max(mc,c);
		}else{
			c=0;
		}
		if(*it==4){
			return "four card";
		}else if(*it==3){
			is3 = true;
		}else if(*it==2){
			if(is3){
				return "full house";
			}else if(is2){
				return "two pair";
			}else{
				is2 = true;
			}
		}
	}
	if(mc==5){
		return "straight";
	}
	if(is3){
		return "three card";
	}else if(is2){
		return "one pair";
	}
	return "null";
}

int main(){
	int nums[5];
	while(scanf("%d,%d,%d,%d,%d",&nums[0],&nums[1],&nums[2],&nums[3],&nums[4])+1){
		cout << judge(nums) << endl;
	}
	return 0;	
}

C++: #include <stdio.h>
#include <algorithm>
using namespace std;
int a[5];
int main() {
	while(~scanf("%d,%d,%d,%d,%d", a[0], a[1], a[2], a[3], a[4])) {
		sort(a, a + 5);
		if((a[0] == a[1] || a[3] == a[4]) && a[1] == a[2] && a[2] == a[3]) printf("four card\n");
		if((a[0] == a[1] && a[2] == a[3] && a[3] == a[4]) || (a[0] == a[1] && a[1] == a[2] && a[3] == a[4])) printf("full house\n");
		if(a[0] + 1 == a[1] && a[1] + 1 == a[2] && a[2] + 1 == a[3] && (a[3] + 1) % 13 == a[4] % 13) printf("straight\n");
		if(((a[0] == a[1] || a[2] == a[3]) && a[1] == a[2]) || (a[2] == a[3] && a[3] == a[4])) printf("three card\n");
		else {
			int p = 0; for(int i = 1; i < 5; i++) if(a[i - 1] == a[i]) p++;
			if(p == 2) printf("two pair\n");
			if(p == 1) printf("one pair\n");
			if(p == 0) printf("null\n");
		}
	}
	return 0;
}

C++: #include <iostream>
#include <map>

using namespace std;

void solve()
{
	int a[5];
	while(~scanf("%d,%d,%d,%d,%d", &a[0], &a[1], &a[2], &a[3], &a[4], &a[5]))
	{
		map<int, int> Map;
		for(int i = 0; i < 5; ++i)
		{
			++Map[a[i]];
		}
		if(Map.size() == 2)
		{
			int Max = 0;
			for(map<int, int>::iterator Ite = Map.begin(); Ite != Map.end(); ++Ite)
			{
				if(Max < Ite->second)
				{
					Max = Ite->second;
				}
			}
			if(Max == 3)
			{
				cout << "full house" << endl;
			}
			else
			{
				cout << "four card" << endl;
			}
		}
		else if(Map.size() == 3)
		{
			int Max = 0;
			for(map<int, int>::iterator Ite = Map.begin(); Ite != Map.end(); ++Ite)
			{
				if(Max < Ite->second)
				{
					Max = Ite->second;
				}
			}
			if(Max == 3)
			{
				cout << "three card" << endl;
			}
			else
			{
				cout << "two pair" << endl;
			}
		}
		else if(Map.size() == 4)
		{
			cout << "one pair" << endl;
		}
		else
		{
			map<int, int>::iterator Ite = Map.begin();
			map<int, int>::iterator IteNext = Map.begin();
			++IteNext;
			map<int, int>::iterator IteEnd = Map.end();
			IteEnd--;
			if(IteEnd->first - Ite->first == 4 || IteNext->first - Ite->first == 9)
			{
				cout << "straight" << endl;
			}
			else
			{
				cout << "null" << endl;
			}
		}
	}
}

int main()
{
	solve();
	return(0);
}