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, s, n) for (int i = s; i < n; ++i)
#define rep(i, n) REP(i, 0, n)
#define SORT(c) sort((c).begin(), (c).end())
#define IINF INT_MAX
#define LLINF LLONG_MAX
#define DEBUG false

int main()
{
    int n;
    int i, j, k;
    int ans = 0;
    while (cin >> n)
    {
        ans = 0;
        i = 0;
        j = 0;
        k = 0;
        rep(i, 10)
        {
            rep(j, 10)
            {
                rep(k, 10)
                {
                    if (0 <= n - i - j - k && n - i - j - k <= 9)
                    {
                        ans++;
                    }
                }
            }
        }
        cout << ans << endl;
    }
}

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

int main() {
  while (!cin.eof()) {
    int n, a, b, c, d, cnt = 0;
    cin >> n;
    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)
	      cnt++;
    cout << cnt << endl;
  }
}

C++: #include <algorithm>
#include <cmath>
#include <iomanip>
#include <iostream>
#include <list>
#include <vector>
using namespace std;

const double interest = 0.05;
const int roundYen = 1000;

int weeklyAdd(int debt) {
  debt = debt * (1 + interest);
  debt = ceil(debt / roundYen) * roundYen;
  std::cout << debt << '\n';
  return debt;
}

int main(int argc, char const *argv[]) {
  // int week = 5;
  int week;
  std::cin >> week;
  int debt = 100000;

  for (size_t i = 0; i < week; i++) {
    debt = weeklyAdd(debt);
  }

  return 0;
}

C++: #include <stdio.h>

int main( void ){
    int nCount = 0;
    int n;
    while( true ){
    scanf( "%d",&n );
    if( n == NULL ) break;

    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 ) nCount++;
                }
            }
       }
    }

    printf( "%d\n",nCount );
    }
    return 0;
}

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



int main(void){	

	int n,count;
	while (cin >> n){
		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;
	

	}
	
	return 0;
}

C++: #include <iostream>

using namespace std;

int main() {
    int n,i,j,k,l,ans = 0;

    while(cin >> n){

        for(i = 0;i <= 9;i++){
            for(j = 0;j <= 9;j++){
                for(k = 0;k <= 9;k++){
                    for(l = 0;l <= 9;l++){
                        if(n == i + j + k + l){
                            ans++;
                        }
                    }
                }
            }
        }
        
        cout << ans << endl;
    }
    
    return 0;
}

C++: #include<iostream>
#include<cstdio>
using namespace std;
int main(){
	for(;;){
		int s,f = 0;
		if(scanf("%d",&s) == EOF){break;}
		for(int i=0; i<10; i++) for(int l=0; l<10; l++) for(int m=0; m<10; m++) for(int n=0; n<10; n++) if(i+l+m+n == s){f++;}
		cout <<f<<endl;
	}
	return 0;
}

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

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

int main() {
    int N;
    while(cin >> N) {
        int 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 0;
}

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

int main() {
  std::cin.tie(0);
  std::ios::sync_with_stdio(false);

  int i, j, k, l, sum, count = 0;

  cin >> sum;
  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 == sum) { count += 1; }
        }
      }
    }
  }

  cout << count << endl;

  return 0;
}

C++: #include<iostream>

using namespace std;

int main()
{
	int input;
	cin >> input;
	
	short count = 0;
	int i, j, k, l;
	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 == input)	count++;
				}
			}
		}
	}
	cout << count << endl;
	
	return 0;
}

C++: #define _CRT_SECURE_NO_WARNINGS
#define M_PI 3.14159265358979
#include <iostream>
#include <stdio.h>
#include <string>
#include <math.h>
#include<iomanip>
#include<vector>
#include<cmath>
#include <algorithm>

using namespace std;


int main()
{

	int n, counter = 0;

	while (scanf("%d", &n) != -1){
		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) counter++;
					}
				}
			}
		}
		cout << counter<<endl;
	}
	return 0;
}

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

int main()
{
	int n;
	while(cin >> n){
	int t = 0;
	for (int a = 0; a < 10; ++a)
	{
		for (int b = 0; b < 10; ++b)
		{
			for (int c = 0; c < 10; ++c)
			{
				if(n - (a + b + c ) <= 9 && 0 <= n - (a + b + c )){
					t++;
				}
			}
		}
	}
	cout << t << endl;
}
	return 0;
}

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

void test();
int sum_comb(int n);

using namespace std;

int main(void)
{
	test();
	return 0;
}

void test()
{
	int n,comb;

	while (cin >> n)
	{
		comb = sum_comb(n);

		cout << comb << endl;
	}
}

int sum_comb(int n)
{
	int a, b, c, d,cnt;
	cnt = 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)
						cnt++;
				}
			}
		}
	}
	return cnt;
}

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

using namespace std;

int main(void)
{

	int val,count = 0;
	while (scanf_s("%d", &val) != EOF)
	{
		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 == val)count++;

					}

				}


			}


		}

		printf("%d\n", count);
		count = 0;

	}

}

C++: #include<iostream>
using namespace std;
 
int main()
{
int n,combo=0;
while(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++)

if(a+b+c+d==n)
combo++;

cout<<combo<<endl;
}

return 0;
}

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

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