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++: //include
//------------------------------------------
#include <vector>
#include <list>
#include <map>
#include <set>
#include <queue>
#include <stack>
#include <bitset>
#include <algorithm>
#include <functional>
#include <numeric>
#include <utility>
#include <sstream>
#include <iostream>
#include <iomanip>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <cctype>
#include <string>
#include <cstring>
#include <ctime>
#include <fstream>
#include <complex>
#include <math.h>
using namespace std;

//conversion
//------------------------------------------
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();}

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

//typedef
//------------------------------------------
typedef vector<int> VI;
typedef vector<VI> VVI;
typedef vector<string> VS;
typedef pair<int, int> PII;
typedef pair<long, long> PLL;
typedef long long LL;
//container util
//------------------------------------------
#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())

//repetition
//------------------------------------------
#define FOR(i,a,b) for(long i=(a);i<(b);++i)
#define REP(i,n)  FOR(i,0,n)

//constant
//--------------------------------------------

//clear memory
#define CLR(a) memset((a), 0 ,sizeof(a))

const long double EPS = 1e-12;
const double INF = 1e12;

LL gcd(LL a,LL b){
	if(b==0)return a;
	return gcd(b,a%b);
}

int main(){
	int n;
	while(cin>>n){
		long cnt=0;
		REP(a,10)REP(b,10)REP(c,10)REP(d,10)if(a+b+c+d==n)cnt++;
		cout<<cnt<<endl;
	}
	return 0;
}

C++: #include <stdio.h>

int main(void)
{
	int n;
	int a,b,c,d;
	int count;
		
	scanf("%d", &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++;
					}
				}
			}
		}
	}
	
	printf("%d\n", count);
	
	return (0);
}

C++: //0008
#include <bits/stdc++.h>
using namespace std;

int main(){
	int ans,a,b,c,d,n;

	while(cin>>n){
	ans = 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)
						ans++;
					}
				}
			}
		}
		cout<<ans<<endl;
	}
	return 0;
}

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

int a,b,x;

int mySet(int d){
  for(int i=0;i<10;i++){
    if(d<3){
      mySet(d+1);
    }else if(d==3){
      if(a==x){
      b++;
      }
    }
    a++;
  }
  return a=a-10;
}

int main(void){
  cin>>x;
  mySet(0);
  cout<<b<<endl;
  return 0;
}

C++: #include <cstdio>
#include <cstdlib>

using namespace std;

int hasil,input; 

int main()
{
	while(scanf("%d",&input) != EOF)
	{	
	hasil=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(input==a+b+c+d)
					{
						hasil++;
					}
				}
			}
		}
	}
	printf("%d\n",hasil);
	}
	return 0;
}

C++: #include<bits/stdc++.h>
#define loop(i, a, b) for(int i = a; i < b; i++) 
#define rep(i, a) loop(i, 0, a)
using namespace std;
const int MOD = 1000000007;
const int inf = 1e8;
using vi = vector <int>;
using vvi = vector <vi>;
using vc = vector <char>;
using vvc = vector <vc>;
using vs = vector <string>;
using vvs = vector <vs>;
//g++ -std==c++14
//setprecision(10)
int n, ans;

int main(){
    while(cin >> n){
        ans = 0;
        rep(i, 10)rep(j, 10)rep(k, 10)rep(l, 10)if(i + j + k + l == n)ans++;
        cout << ans << endl;
    }
}

C++: /*http://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=0008&lang=jp*/

#include <iostream>

using namespace std;

int main(){
    int n;

    while(cin >> n) {
        int r = 0;
        for (int i = 0; i < n + 1 && i < 10; ++i) {
            for (int j = 0; i + j < n + 1 && j < 10; ++j) {
                for (int k = 0; i + j + k < n + 1 && k < 10; ++k) {
                    if (n < i + j + k + 10) {
                        r++;
                    }
                }
            }
        }
        cout << r << endl;
    }
    return 0;
}

C++: #include <iostream>
#include <vector>
#include <math.h>
#include <string>

int main(void);
int combination(int n);
bool combination_sub();

int main(){
	int n;				//入力されるデータセット
	int cnt = 0;		//データセット入力カウント
	int result[50];		//組み合わせ個数を格納する配列

	while (std::cin >> n){
	//while (cnt < 2){
		//std::cin >> n;
		result[cnt] = combination(n);
		cnt++;
	}

	for (int i = 0; i < cnt; i++){
		std::cout << result[i] << std::endl;
	}

	//while (1);
	return 0;
}

int combination(int n){
	int rtn = 0;
	
	//全部同じ場合
	for (int x = 0; x <= 9; x++){
		if (x * 4 == n){
			rtn++;
		}
	}

	//「全部同じ」以外の場合
	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) && (a == c) && (a == d))){
						if ((a + b + c + d) == n){
							rtn++;
						}
					}
				}
			}
		}
	}

	return rtn;
}

C++: #include<iostream>

int main()
{
	int n, count{};
	while (std::cin >> n)
	{
		count = 0;
		for (int a = 0; a < 10 && a <= n; ++a)
		{
			if (a + 27 < n) continue;
			for (int b = 0; b < 10 && a + b <= n; ++b)
			{
				if (a + b + 18 < n) continue;
				for (int c = 0; c < 10 && a + b + c <= n; ++c)
				{
					if (a + b + c + 9 < n) continue;
					count++;
				}
			}
		}
		std::cout << count << std::endl;
	}
	return 0;
}

C++: #include <stdio.h>
#include <string.h>

int main(void){
	int n,a,b,c,d,count=0;
	scanf("%d",&n);
	for(a=1;a<=n;a++){
		for(b=1;b<=n;b++){
			for(c=1;c<=n;c++){
				for(d=1;d<=n;d++){
					if((a+b+c+d)==n){
						count++;
					}
				}
			}
		}
	}
	printf("%d\n",count);
}

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

int main() {
  unsigned int input;
  unsigned int count=0;
  cin >> input;

  for(int a0=0; a0<10; a0++) {
    for(int a1=a0; a1<10; a1++) {
      for(int a2=a1; a2<10; a2++ ) {
        for(int a3=a2; a3<10; a3++) {
          if(a0+a1+a2+a3==input) {
            count++;
          }
        }
      }
    }
  }
  cout << count << endl;

  return 0;
}

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

int main(){
	int sum = 0;
	int n;
	while(scanf("%d", &n)>0){
		sum = 0;
		for(int i=0; i<10; i++){
			for(int j=0; j<10; j++){
				for(int k=0; k<10; k++){
					for(int l=0; l<10; l++){
						if(i+j+k+l==n) sum++;
					}
				}
			}
		}
		printf("%d\n", sum);
	}

	return 0;
}

C++: #include <stdio.h>

int main(void)
{
	int n;
	int i, j, k, l;
	int ans;
		
	while(scanf("%d", &n) != EOF){
		ans = 0;
			for(i = 0; i < 10; i++){
				for(j = 0; j < 10; j++){
					for(k = 0; k < 10; k++){
						for(l = 0; l < 10; l++){
							if(i + j + k + l == n){ ans += 1; }
						}
					}
				}
			}
			
			printf("%d\n", ans);
		}
		return 0;
}

C++: #include <iostream>
using namespace std;
int main( void )
{
  int n;
  while( 1 ){
    cin >> n;
    if( cin.eof() ) break;
    int x = 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 ) x++;
    cout << x << endl;
  }
  return 0;
}