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 argc, char* argv[])
{
	int a, b, c, d, n, count;

	while(cin >> 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++;
							break;
						}
						if((a + b + c + d) > n){
							break;
						}
					}
					if((a + b + c) > n){
						break;
					}
				}
				if((a + b) > n){
					break;
				}
			}
		}
		cout << count << 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 << "\n";
}
	return 0;
	
}

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

int main()
{
    int i, j, k, l;
    int input;
    int count;
    while(scanf("%d",&input)==1)
    {
        count = 0;
        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((i+j+k+l)==input)
                            count++;
                    }
        printf("%d\n",count);
    }

    return 0;
}

C++: #include<algorithm>
#include<functional>
#include<cmath>
#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<string>
#include<sstream>
#include<iostream>
#include<iomanip>
#include<vector>
#include<list>
#include<stack>
#include<queue>
#include<map>
#include<set>
#include<bitset>

#define all(c) (c).begin(), (c).end()
#define rep(i,n) for(int i=0;i<(n);i++)
#define pb(e) push_back(e)
#define mp(a, b) make_pair(a, b)
#define fr first
#define sc second

typedef unsigned long long ull;
typedef long long ll;

const int INF=100000000;
int dx[4]={1,0,-1,0};
int dy[4]={0,1,0,-1};

using namespace std;

typedef pair<int ,int > P;

int n,ans;

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


	return 0;
}

C++: #include <iostream>
using namespace std;
 
int main() {
	int n;
	int count = 0;
	cin >> n;
	for (int i = 0; i < 10;i++) {
		for (int j = 0; j < 10;j++) {
			for (int k = 0; k < 10;k++) {
				if (n - i - j - k >=0 && n - i - j - k <= 9) count++;
			}
		}
	}
	return 0;
}

C++: #include <iostream>
#include <algorithm>
#include <vector>
#include <string>
using namespace std;
typedef long long int ll;

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

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

using namespace std;

int main (void) {
	int n, MAX = 9, count;
	
	while (scanf("%d", &n) != EOF) {
		count = 0;
		
		for (int a = 0; a <= MAX; a ++) {
			for (int b = 0; b <= MAX; b ++) {
				for (int c = 0; c <= MAX; c ++) {
					for (int d = 0; d <= MAX; d ++) {
						if (a + b + c + d == n) {
							count ++;
						}
					}
				}
			}
		}
		
		cout << cout << endl;
	}
	
	return 0;
}

C++: #include<bits/stdc++.h>
using namespace std;
int main()
{
    //freopen("in.txt","r",stdin);
    //ios::sync_with_stdio(false);
    int n,i,j,k,l,c=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)
                            c++;
        cout << c << endl;
        c=0;
    }
    return 0;
}

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

int main(){

	int n, t, ans;

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

    return 0;
}

C++: #define scanf_s scanf
#include <stdio.h>
#include <string>
#include <iostream>
using namespace std;
#define MAX 20
int main(void)
{
	int n, cou;
	int i = 0, j = 0, l = 0, k = 0;
	while (scanf_s("%d", &n) != EOF) {
		for (int i = 0; i <= 9 && i <= n; ++i) {
			for (int j = 0; j <= 9 && i + j <= n; ++j) {
				for (int l = 0; l <= 9 && i + j + l <= n; ++l) {
					for (int k = 0; k <= 9 && i + j + l + k <= n; ++k) {
						if (i + j + l + k == n) ++cou;
					}
				}
			}
		}
		printf("%d\n", cou);
		cou = 0;
	}
}

C++: #include<bits/stdc++.h>
#include<vector>
#include<list>
#include<stack>
#include<queue>
#include<algorithm>
using namespace std;


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

C++: #include<iostream>
#include<cstdio>
#define a(i,b) for(int i=0;i<b;i++)
using namespace std;
int main() {
    int n,c;
    while(scanf("%d",&n)!=EOF){
    	c=0;
    	a(i,10)a(j,10)a(k,10)a(h,10)if(i+j+k+h==n)c++;
    cout<<c<<endl;
    }
    return 0;
}

C++: #include<bits/stdc++.h>
using namespace std;
int main(){
	int n;
	while (cin >> n){
		int c = 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){
							c++;
						}
					}
				}
			}
		}
		cout << c << endl;
	}
	return 0;
}

C++: #include <iostream>
#include <vector>
#include <algorithm>

#define ascent(i, a, b) for(int (i) = (a); (i) < (b); (i) ++)

using namespace std;

int main() {
  int tmp;
  vector<int> n;
  while(cin >> tmp) {
    n.push_back(tmp);
  }

  ascent(i, 0, n.size()) {
    int ans = 0;
    ascent(a, 0, 10) {
      ascent(b, 0, 10) {
	ascent(c, 0, 10) {
	  ascent(d, 0, 10) {
	    if(a + b + c + d == n[i]) {
	      ans ++;
	    }
	  }
	}
      }
    }
    cout << ans << endl;
  }
  
  return 0;
}

C++: #include<stdio.h>

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

}

C++: #include <iostream>

using namespace std;

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

for(int j=0;j<5;j++){
cin>>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++;

                }}}}

    cout<<count<<endl;

}
    return 0;
}