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;

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

C++: #include <stdio.h>

int main(void)
{
	int n;
	int a,b,c,d;
	int count;
	
	while (scanf("%d", &n) == 1){
		
		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++: #include <iostream>

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

using namespace std;

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

C++: #include<stdio.h>
int main(void)
{
	int i,j,k,l;
	int cnt;
	int n;

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

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

void f(int, int, int, int);
int main()
{
	/*
	int i,array[SIZE], sum = 0;
	for (i = 0; i < SIZE; i++)
	{
		array[i] = (i + 1) * 10;
		printf("%d???????????????:%d\n", (i + 1), array[i]);
		sum += array[i];
	}
	printf("%d\n", sum);
	return 0;
	
	*/
	/*
	double debt = 100000,add,n,p = 0.05;
	std::cin >> n;
	for (int i = 0; i < n; i++)
	{
		add = (double)(int)(((debt * 0.05)/1000)+0.999)*1000;
		debt += add;
	}
	std::cout << debt;
	*/
	/*
	int num[SIZE],i;
	for (i = 0; i < SIZE;i++)
		scanf("%d", &num[i]);
	for (i = 1; i <= SIZE; i++)
		printf("%d\n", num[SIZE - i]);
		*/
	
	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<iostream>
#include<stdio.h>

using namespace std;

#define MAX 256

int kai (int x){
	if(x == 1 || x == 0)return 1;
	return x * kai(x - 1);
}

int miku(int x){
	if(x > 36)return 0;
	if(x < 10)return kai(x + 3) / ( kai(x) * 6);
	if(x > 19)return miku(36 - x);
	if(x > 9 && x < 19)return kai(x + 3) / ( kai(x) * 6) - (miku(x - 10) * 4);
}

int main(void){
	int n,i = 0;
	int ans[MAX];
	
	while( cin >> n != EOF){
		ans[i] = miku(n);
		i++;
	}
	
	for(int j = 0;j < i;j++){
		cout << ans [j] <<endl;
	}

	return 0;
}

C++: #include<bits/stdc++.h>
using namespace std;
#define all(vec) vec.begin(),vec.end()
typedef long long int ll;
typedef pair<ll,ll> P;
const ll MOD=1234567;
const ll INF=1000000010;
const ll LINF=1000000000000000010LL;
const int MAX=500010;
const double EPS=1e-3;
int dx[4]={0,1,0,1};
int dy[4]={0,0,1,1};
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>
#include <vector>

void calc(std::vector<int> &v) {
    std::vector<int> g(10, 0);
    for (int i = 1; i <= 9; i++) {
        v[i] = 4 * i; 
    }
    for (int i = 0; i <= 9; i++) {
        g[i + 9] = 3 * i;
    }
    for (int i = 1; i <= 9; i++) {
        v[i + 9] = g[i + 8] * 3 + (v[i + 8] - g[i + 8]);
    }
    return; 
}

int main(void) {
    std::vector<int> v(19, 0);
    calc(v);
    int total;

    while (std::cin >> total) {
        if (total > 36) {
            std::cout << '0' << std::endl;
            return 0;
        } else if (total > 18){
            total = 36 - total; 
        }
        std::cout << v[total] << std::endl;
    }
    return 0;
}

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

int main()
{
        int n,count = 0;
        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++){
                                        if((a+b+c+d)==n)count++;
                                }

        cout << count << "\n";

        return 0;
}

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

int num ;
int count = 0 ;

int main()
{
	cin >> num ;

		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) == num )
						{
							count ++ ;
						}
					}
				}
			}
		}

	cout << count ;

	return 0 ;
}

C++: #include<iostream>

using namespace std;

int main(){
	int N, a,b,c,d,count=0;
	cin >> N;
	
	for(int i=0; i<10;i++){
		if((N-i)/3 >9) continue;
		for(int j=0; j<10;j++){
			if((N-i-j)/2 > 9) continue;
			for(int k=0; k<10;k++){
				if((N-i-j-k) > 9 || (N-i-j-k)<0) continue;
				cout << i<< " " << j << " " << k << " "<< N-i-j-k <<endl;
				count++;
			}
		}
	}
	cout << count << endl;
	return 0;
}

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;
  }
}

C++: #include <iostream>

using namespace std;

int main()
{
	int n, t; int cnt = 0;

	cin >> n;

	for (int i = 0; i < 10; i++)
	{
		for (int j = 0; j < 10; j++)
		{
			for (int k = 0; k < 10; k++)
			{
				t = n - (i + j + k);

				if (0 <= t && t < 10) { cnt++; }
			}
		}
	}

	cout << cnt << endl;

	return 0;
}

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

int dp[51][4];
int rec( int mul, int idx){
  if(mul < 0) return 0;
  if(idx == 4) return mul == 0;
  if(~dp[mul][idx]) return dp[mul][idx];

  int ret = 0;
  for(int i = 0 ; i < 10 ; i++ ){
    ret += rec( mul - i, idx + 1);
  }
  return dp[mul][idx] = ret;
}
int main(){
  int n;
  fill_n( *dp, 51 * 4, -1);
  while(cin >> n){
    cout << rec( n, 0) << endl;
  }
}

C++: #include "stdafx.h"
#include <iostream>
#include <sstream>
#include <vector>
#include <algorithm>
#include <string>
#include <functional>
#include <numeric>
#include <ctype.h>
#include <cstdlib>
#include <string.h>
#include <cmath>
#include <cstdio>





using namespace std;


int main()
{
	int count = 0, num;

	

	while (cin >> num)
	{
		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 == num)
							count++;
					}
				}
			}
		}
		cout << count << endl;
	}

	

}

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

int main () {

int n, count = 0;

    cin >> n;

for (int a = 0; a < 10 && a <= n; a++){
    for (int b = 0; b < 10 && b <= n-a; b++){
        for (int c = 0; c < 10 && c <= n-a-b; c++){
            if (n-a-b-c >=0 && n-a-b-c < 10) {
                count++;
            }
        }
    }
}


    cout << count;


    return 0;

}