Go: package main
import (
	"fmt"
	"os"
	"strconv"
	"bufio"
)

var sc = bufio.NewScanner(os.Stdin)

func main(){
	for sc.Scan(){
		n := nextInt()
		cnt := 0
		// 37以上のとき組み合わせは存在しないが省くのめんどくさいのでまとめて計算
		for a:=0; a<=9; a++{
			for b:=0; b<=9; b++{
				for c:=0; c<=9; c++{
					for d:=0; d<=9; d++{
						if a+b+c+d==n{
							cnt++
						}
					}
				}
			}
		}
		fmt.Println(cnt)
	}
}

func next()string{
	//sc.Scan()
	return sc.Text()
}

func nextInt()int{
	a, _ := strconv.Atoi(next())
	return a
}

C++: using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication
{
    class Program
    {
        static void Main(string[] args)
        {
            while (true)
            {
                var str = Console.ReadLine();
                if (string.IsNullOrEmpty(str)) return;
                Console.WriteLine(pattern(int.Parse(str)));
            }
        }

        static int pattern(int n)
        {
            int ret = 0;
            for (int a = 0; a <= 9; a++)
            {
                for (int b = 0; b <= 9; b++)
                {
                    for (int c = 0; c <= 9; c++)
                    {
                        for (int d = 0; d <= 9; d++)
                        {
                            if (a + b + c + d == n)
                                ret++;
                        }
                    }
                }
            }
            return ret;
        }
    }
}

C++: #include <iostream>
#include <cstdio>
using namespace std;

int combination(int num) {
    int ret = 0;
    for(int n1 = 0; n1 <= 9; n1++) {
        for(int n2 = 0; n2 <= 9; n2++) {
            for(int n3 = 0; n3 <= 9; n3++) {
                for(int n4 = 0; n4 <= 9; n4++) {
                    if(n1 + n2 + n3 + n4 == num) ret++;
                }
            }
        }
    }
    return(ret);
}

int main(void) {
    int num;
    while(cin >> num) cout << combination(num) << endl;
    return(0);
}

C++: #include <iostream>
#include <vector>
#include <algorithm>
#include <string>

using namespace std;

int calc(int, int, int);

int for2(int x,int i,int count,int sum){
	return x == -1 ?0 : calc(i, count - 1, sum + x) + for2(x - 1, i, count, sum);
}

int calc(int i, int count,int sum){
	return count == 0 ? sum == i : for2(9, i, count, sum);
}

int main(){
	int i;
	while (cin >> i){
		cout << calc(i, 4, 0) << endl;
	}
	return 0;
}

C++: #include <cstdio>
#include <set>
#include <tuple>

struct C { int a, b, c, d; };

int main() {
    int n;
    std::set<std::tuple<int, int, int, int>> s;
    while (~scanf("%d", &n)) {
        for (int a = 0; a < 10 && a <= n; ++a) {
            for (int b = 0; b < 10 && a + b <= n; ++b) {
                for (int c = 0; c < 10 && a + b + c <= n; ++c) {
                    for (int d = 0; d < 10 && a + b + c + d <= n; ++d) {
                        if (a + b + c + d == n) {
                            s.insert(std::make_tuple(a, b, c, d));
                        }
                    }
                }
            }
        }
        printf("%lu\n", s.size());
        s.clear();
    }
}

C++: #include<iostream>
#include<cmath>
using namespace std;

int main()
{
	int n,a,b,cnt=0;
	cin >> n;
	for(a=0;a<=18;a++){
		for(b=0;b<=18;b++){
			if(a+b==n) cnt+= (10-(int)abs(a-9)) * (10-(int)abs(b-9));
		}
	}
	cout << cnt << endl;
	return 0;	
}

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

int main(){

	int n;
	int a, b, c, d;
	int combsum=0;
	cin >> n;

	for( a=0;a<=9;a++ )
		for( b=0;b<=9;b++ )
			for( c=0;c<=9;c++ )
				for( d=0;d<=9;d++ )
					if( a+b+c+d == n )
						combsum++;

	cout << combsum << endl;
	return 0;
}

C++: #include<iostream>
int n, count = 0;

void f(int, int, int, int);
int main()
{
	std::cin >> n;
	for (int a = 0; a <= 9; a++)
		for (int b = 0; b <= 9; b++)
			for (int c = 0; c <= 9; c++)
				for (int d = 0; d <= 9; d++)
					f(a, b, c, d);

	std::cout << count<< std::endl;
	return 0;
}

void f(int a, int b, int c, int d)
{
	if (a + b + c + d == n)
	{
		count++;
	}
}

C++: #include<stdio.h>
int main(void)
{
	int a,b,c,d,n,N,Na,x,i,sum;
	while(scanf("%d",&n)!=EOF){
	sum=0;
		for(i=0;i<4;i++){
			N=n/4;
			Na=n%4;
			a=N;
			b=N;
			c=N;
			d=N+Na;
			x=a+b+c+d;
			if(x==n){
				sum++;
			}
		}
		printf("%d\n",sum);
	}
	return 0;
}

C++: #include<iostream>
#include<vector>
using namespace std;

int main()
{
	int N;
	
	int count = 0;
	
	while(cin >> N)
	{
		for(int a = 0; a < 10; a++)
		{
			for(int b = 0; b < 10; b++)
			{
				for(int c = 0; c < 10; c++)
				{
					for(int d = 0; d < 10; d++)
					{
						int s = a + b + c + d;
						if(s == N)count++;
						else if(s > N)break;
					}
				}
			}
		}
                cout << count << endl;
            	count = 0;
        }
	return 0;
}

C++: #include<stdio.h>
int main(){
  int a,b,c,d,n,ans=0;
  while(scanf("%d",&n)!=EOF){
    for(a=0;a<=9;a++){
      for(b=0;b<=9;b++){
	for(c=0;c<=9;c++){
	  for(d=0;d<=9;d++){
	    if(a+b+c+d==n){
	      ans++;
	    }
	  }
	}
      }
    }
    printf("%d\n",ans);
    ans=0;
  }
  return(0);
}

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

int main(void){
    int a,b,c,d,n;
    int count;
    while(cin>>n){
        count=0;
        for(a=0; a<=9; a++){
            for(b=0; b<=9; b++){
                for(c=0; c<=9; c++){
                    for(d=0; d<=9; d++){
                        if((a+b+c+d)==n) count++;
                    }
                }
            }
        }
        cout<<count<<endl;
    }
    return 0;
}

C++: #include<iostream>

using namespace std;
   
void sumOfIntegers()
{
    int n;
    int count;
    
    while(cin>>n)
    {
        count=0;
        
        for(int a=0;a<10;a++)
        {
            for(int b=0;b<10;b++)
            {
                for(int c=0;c<10;c++)
                {
                    for(int d=0;d<10;d++)
                    {
                        if(a+b+c+d==n)
                        {
                            count++;
                        }
                    }
                }
            }
        }
        
        cout<<count<<endl;
    }
    
    return;
}
     
int main()
{     
    sumOfIntegers();
    return 0;
}

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

int main()
{
	int a,b,c,d,n,count;
	
	while(cin >> n){
	count=0;
	
	for(a=0; a<=9; a++){
		for(b=0; b<=9; b++){
			for(c=0; c<=9; c++){
				for(d=0; d<=9; d++){
					if(a+b+c+d==n) count++;
				}
			}
		}
	}
	
	cout << count << endl;
	}
	return 0;
}