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 <iostream>

using namespace std;

void solve()
{
	int n;
	while(cin >> n)
	{
		if(n >= 37)
		{
			cout << 0 << endl;
		}
		else
		{
			int count = 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)
							{
								++count;
							}
						}
					}
				}
			}
			cout << count << endl;
		}
	}
}

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

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

#define fi first
#define se second
#define all(r) (r).begin(),(r).end()
#define vmax_v(ary) *max_element(all(ary))
#define vmin_v(ary) *min_element(all(ary))
#define vmax_id(ary) distance((ary).begin(),max_element(all(ary)))
#define vmin_id(ary) distance((ary).begin(),min_element(all(ary)))

using ll = int64_t;
using pll = pair<ll,ll>;
using vl = vector<ll>;

const ll INF=INT64_MAX;
const double EPS=1e-10;
const double PI=acos(-1.0);

void init(){cin.tie(0);ios::sync_with_stdio(false);}
//----------------------------------------------------

int main(){
    init();

    ll n;
    while(cin>>n,!cin.eof()){
      ll ct=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){
                ct++;
              }
            }
          }
        }
      }
      cout << ct << endl;
    }
    return 0;
}

C++: #include<stdio.h>

int main(){
        int n,m = 0;
        while( scanf("%d",&n)!=EOF){
                if(n > 50)
                        continue;
                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){
                                                        m += 1;
                                                }
                                        }
                                }
                        }
                }
                printf("%d\n",m);
                m = 0;
        }
        return 0;
}

C++: #include <iostream>

using namespace std;

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

C++: #include <iostream>
using namespace std;
int main() {
	int n, a, b, c, d, cnt = 0;
	while (cin >> n) {
		cnt = 0;
		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<stdio.h>

int n=0;
int count=0;

int main(){
	while(scanf("%d",&n)!=EOF){
		count=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) count++;
					}
				}
			}
		}
		printf("%d\n",count);
	}
	

	return 0;
}

C++: /*
 * http://judge.u-aizu.ac.jp/onlinejudge/description.jsp?id=0008
 */
#include <iostream>
#include <vector>

using namespace	std;

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

	vector<int> m(51);
	for (int i = 0; i < 10000; i++) {
		m[ i % 10 + i / 10 % 10 + i / 100 % 10 + i / 1000 ]++;
	}

	int n;
	while (cin >> n) {
		cout << m[n] << endl;
		cin.ignore();
	}
	return 0;
}

C++: #include <iostream>

using namespace std;

int main(){
	int a, b, c, d, n;
	int x = 0;
	
	while(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){
							x++;
						}
					}
				}
			}
		}
		cout << x << endl;
		x = 0;
	}
	
	return 0;
}

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

using namespace std;
int main() {
  int N;
  int money = 100;
  cin >> N;
  for (int i = 0; i < N; i++) {
    money = ceil(money * 1.05);
  }
  cout << money * 1000 << endl;
  return 0;
}

C++: #include <iostream>
using namespace std;
int main(){
	int n,g,ans=0;
	while(1){
	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++){
					g=a+b+c+d;
					if(g==n)ans++;
				}
			}
		}
	}
	cout<<ans<<endl;
	ans=0;
	}
	return 0;
}

C++: //↓template↓

#include "bits/stdc++.h"
using namespace std;
#define Would
#define you
#define all(n)  n.begin(),n.end()
const long long INF = 1e18;
const long long MOD = 1e9 + 7;
const double pi = acos(-1);
const int SIZE = 1 << 17;
int dx[] = { 1,0,-1,0 }, dy[] = { 0,1,0,-1 }, alp[30];
long long fac[200005], finv[200005], inv[200005];
vector<long long>dij;
struct edge { long long to, cost; };
vector<vector<edge> >G;

long long mod_pow(long long a, long long b) {
	long long res = 1, mul = a;
	for (int i = 0; i < 31; ++i) {
		if (b >> i & 1) {
			res *= mul;
			res %= MOD;
		}
		mul = (mul * mul) % MOD;
	}

	return res;
}

void addedge(int from, int to, int cost) {
	G[from].push_back({ to,cost });
	G[to].push_back({ from,cost });
}

//↑template↑

int main() {
	int n;
	while (cin >> n) {
		int ans = 0;
		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++: #include<stdio.h>
#include<stdlib.h>
    int main(void){
    int i,j,k,l,n,m,cut;
    while(scanf("%d",&n), n!=EOF){
    cut=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++){
                    m=i+j+k+l;
                    if(n==m){
                        cut++;
                    }
                }
            }
        }
    }
        printf("%d",cut);
    }
    return 0;
    }

C++: #include<iostream>
#define rep(i,n) for(int i=0;i<n;i++)
using namespace std;

int main(){
  int n;
  while(cin >> n){

    int ans = 0;
    rep(a,10)rep(b,10)rep(c,10)rep(d,10){
      if(a+b+c+d == n)ans++;
    }
    cout << ans << endl;
  }
}

C++: #include <iostream>
using namespace std;
#define rep(i,n) for(int i=0;i<(n);++i)
int main(){
	int n,a,ans=0;
	while(cin >> n){
		rep(i,10){
			rep(j,10){
				rep(k,10){
					a=n-i-j-k;
					if(a>=0 && a<10){
						ans++;
					}
				}
			}
		}
		cout << ans << endl;
	}
}

C++: #include "stdio.h"

int main()
{
    int n;
    while(scanf("%d", &n) != EOF)
    {
        int count = 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)
                            count++;
                    }
                }
            }
        }
        printf("%d\n", count);
    }
    return 0;
}

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

int main(){
  int n,a,b,c,d;
  while(cin >> n){
    int ans = 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) ans++;
          }
        }
      }
    }
    cout << ans << endl;
  }
}