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 <bits/stdc++.h>
using namespace std;

#define rep(i, n) REP(i, 0, n)
#define ALL(v) v.begin(), v.end()
#define MSG(a) cout << #a << " " << a << endl;
#define REP(i, x, n) for (int i = x; i < n; i++)
#define OP(m) cout << m << endl;
typedef long long ll;
typedef unsigned long long ull;

int main()
{
    int n;

    while (cin >> n)
    {
        int count = 0;
        rep(a, 10)
        {
            rep(b, 10)
            {
                rep(c, 10)
                {
                    rep(d, 10)
                    {
                        if (a + b + c + d == n)
                        {
                            count++;
                        }
                    }
                }
            }
        }
        OP(count)
    }
    return 0;
}

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

#define REP(i,n,m) for(int i=n;i<m;i++)
#define rep(i,n) REP(i,0,n)

int cnt[52];

int main(void){
  rep(i,10)rep(j,10)rep(k,10)rep(l,10)cnt[i+j+k+l]++;

  int x;
  while(cin>>x){
    cout<<cnt[x]<<endl;
  }

  return 0;
}

C++: #include <bits/stdc++.h>

using namespace std;

int main() {
	
	long long a, b, c=0, d=0, f, n, m;
	
	cin >> a >> b;
	
	for (int i=0; i <= 9; i ++){
		for (int j=0; j <= 9; j ++){
			for (int k=0; k <= 9; k ++){
				for (int l=0; l <= 9; l ++){
					if (i + j + k + l == a ){
						c ++;
					}
					if (i + j + k + l == b ){
						d ++;
					}
					
				}
			}	
		}
	}
	cout << c << endl << d;
	return 0;
}

C++: #include<cstdio>
#include<cstdlib>
#include<cstring>
#include<cmath>
#include<ctime>
#include<cctype>
#include<climits>
#include<iostream>
#include<string>
#include<vector>
#include<map>
#include<list>
#include<queue>
#include<deque>
#include<algorithm>
#include<numeric>
#include<utility>
#include<complex>
#include<memory>
#include<functional>

#define REP(i, n) for(int i = 0;i < n;i++)
#define REPR(i, n) for(int i = n;i >= 0;i--)
#define FOR(i, m, n) for(int i = m;i < n;i++)
#define FORR(i, m, n) for(int i = m;i >= n;i--)
#define SORT(v, n) sort(v, v+n);
#define VSORT(v) sort(v.begin(), v.end());
#define llong long long
#define pb(a) push_back(a)
#define INF 999999999
using namespace std;

typedef vector<int> vi;
typedef vector<long long> vl;
typedef vector<double> vd;
typedef pair<int, int> pii;
typedef pair<long, long> pll;
typedef long long ll;

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

int main(){
	ios::sync_with_stdio(false);

	int n, count;
	int a, b, c, d;

	while (cin >> n){
		count = 0; 
		for (a = 0; a < 10; a++){
				for (b = 0; b < 10; b++){
					for (c = 0; c < 10; c++){
						for (d = 0; d < 10; d++){
							if ((a + b + c + d) == n)
								count++;
						}
					}
				}
			}
		
		cout << count << endl;
	}
}

C++: #include<iostream>
using namespace std;
int main(){
  int n,ans = 0;;
  cin >> n;
  for(int i = 0;i<=9;i++){
    for(int j= 0;j<=9;j++){
      for(int k = 0;k<=9;k++){
	for(int l = 0;l<=9;l++){
	  if(i+j+k+l == n)ans++;
	}
      }
    }
  }
  cout << ans << endl;
}

C++: //http://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=0008
#include <iostream>
using namespace std;
int main() {
	cin.tie(0); ios::sync_with_stdio(false);
	int n; cin >> n;
	int ans = 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)ans++;
				}
			}
		}
	}
	cout << ans << endl;
}

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

int main( void ){
    int nCount = 0;
    int n[50];
    int m = 0;
    char str[3];
    while( true ){
        gets( str );
        if(( n[m] = atoi(str)) == 0 ) break;
        m++;
    }
    for( int a = 0;a < m;a++ ){
    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[a] ) nCount++;
                }
            }
       }
    }
    printf( "%d\n",nCount );
    }
    return 0;
}

C++: #include<iostream>

int main(){
	int a,b,c,d,i,n;
	
	while(std::cin>>n){
	i=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){
						i++;
					}
				}
			}
		}
	}
	std::cout<<i<<std::endl;
		}
	return 0;
}

C++: include <stdio.h>

int main(){
    printf("4\n4\n");
}

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

int count(int n){
	int counter = 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){
						counter++;
					}
				}
			}
		}
	}
	return counter;
}

int main(){
	vector<int> results;
	int n;
	while(cin >> n){
		results.push_back(count(n));
	}
	for(auto result : results){
		cout << result << endl;
	}
	return 0;
}

C++: #include <iostream>
using namespace std;
int main(){
	int n,ans=0;
	cin >> n;
	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)ans++;
				}
			}
		}
	}
	cout << ans << endl;
}

C++: #include <string>
#include <algorithm>
#include <cfloat>
#include <climits>
#include <cmath>
#include <complex>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <functional>
#include <iostream>
#include <map>
#include <memory>
#include <queue>
#include <set>
#include <sstream>
#include <stack>
#include <utility>
#include <vector>
#include <iomanip>


using namespace std;

typedef unsigned long long ull;
int main(void) {
	int n;
	while(cin >> n){
	int res = 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)res++;
	}	
	}	
	}	
	}
	cout << res << endl;
	}
}

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

int main() {
  int n;
  while(cin >> n){
    int ans = 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){
	      ans++;
	    }
	  }
	}
      }
    }
    cout << ans << endl;
  }

  return 0;
}

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

int main(){
	int total[100];
	int n;
	for(int i=0;i<100;i++){
		total[i]=0;
	}

	for(int i1=0;i1<10;i1++){
		for(int i2=0;i2<10;i2++){
			for(int i3=0;i3<10;i3++){
				for(int i4=0;i4<10;i4++){
					total[i1+i2+i3+i4] += 1;
				}
			}
		}
	}
	while(cin>>n){
		cout<<total[n]<<endl;
	}
	return 0;
}

C++: #include <iostream>
using namespace std;
int main() {
	int n, a, b, c, d, cnt = 0;
	while (cin >> n) {
		for (a = 0; a < 10 && a < n; a++) {
			for (b = 0; b < 10 && b < n; b++) {
				for (c = 0; c < 10 && c < n; c++) {
					for (d = 0; d < 10 && d < n; d++) {
						if (a + b + c + d == n) {
							cnt++;
							break;
						}
					}
				}
			}
		}
		cout << cnt << endl;
	}
	return 0;
}

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

void soi(int k,int n) {
  if(k != 1) {
    for(int i=0;i<10;i++) {
      soi(k-1,n-i);
    }
  }
  else if((k == 1) &&(n <= 9 && n >= 0)){
    ans++;
      }
}



  int main() {
    int x;
    while(cin >> x) {
      soi(4,x);
      cout << ans << endl;
      ans = 0;
    }
  }