Go: package main
import (
	"fmt"
	"os"
	"strconv"
	"bufio"
)

var sc = bufio.NewScanner(os.Stdin)

func main(){
	for sc.Scan(){
		n := nextInt()
		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++
						}
					}
				}
			}
		}
		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,n;
	
	while(cin>>n){
	int 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;
}

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;
	int i, j, k, t;
	int cnt=0;
	//cin >> n;
	while (cin >> n)
	{
		cnt = 0;
		for (i = 0; i <= 9; i++)
		{
			for (j = 0; j <= 9; j++)
			{
				for (k = 0; k <= 9; k++)
				{
					for (t = 0; t <= 9; t++)
					{
						if (i + j + k + t == n)
						{
							cnt++;
						}
					}
				}
			}
		}
		cout << cnt << endl;
		//cin >> n;
	}
	return 0;
}

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

int AgreementCountAnswer(int n)
{
	int AgreementCount = 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) AgreementCount++;
				}
			}
		}
	}
	return AgreementCount;
}

int main()
{
	while(true){
		int n;
		cin >> n;
		if(cin.eof() == true) break;
		cout << AgreementCountAnswer(n) << endl;
	}
	return 0;
}

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

using namespace std;

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

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

int main()
{
    int in=0;
    
    while(cin >> in){
        
        int cnt=0;
        
        for (int n=0; n<10; n++) {
            for (int o=0; o<10; o++) {
                for (int p=0; p<10; p++) {
                    for (int q=0; q<10; q++) {
                        if(in == n+o+p+q) cnt++;
                    }
                }
            }
        }
        
        cout << cnt << endl;
    }
}

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

using namespace std;


int main(){
	int n;
	int ans = 0;

	while(cin >> n){
		for(int i=0;i<10;i++){
			for(int j=0;j<10;j++){
				for(int x=0;x<10;x++){
					for(int y=0;y<10;y++){
						if(i+j+x+y == n)ans++;
					}
				}
			}
		}
		printf("%d\n",ans);
		ans = 0;
	}

	return 0;
}

C++: #include<iostream>
#include<cstdio>
using namespace std;
int main(){
  int n;
  while(scanf("%d",&n)!= EOF){
    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<iostream>
using namespace std;

int main(){
    int n, a, b, c, d, 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++;
                        }
                    }
                }
            }
        }
        cout << count << endl;

    }
    return 0;
}

C++: #include <iostream>

int main()
{
    while (true) {
        int n;
        std::cin >> n;
        if (std::cin.eof()) break;

        int cnt = 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) ++cnt;
        std::cout << cnt << std::endl;
    }
}

C++: #include <iostream>

using namespace std;

int main() {
    int n;
    while (true) {
        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++) {
                    int d = n-i-j-k;
                    if (0 <= d && d < 10) {
                        count++;
                    }
                }
            }
        }
        cout << count << endl;
        if (cin.eof()) {
            return 0;
        }
    }
}

C++: #include<iostream>
using namespace std;
int main(){
int n;
while(cin>>n){
int counter=0;
for(int a=0;a<10;a++){
for(int b=0;b<10;b++){
for(int c=0;c<10;c++){
if(0<=n-a-b-c && n-a-b-c<=9){
counter++;
}
}
}
}
cout<<counter<<endl;
}
return 0;
}

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

using namespace std;

int main()
{
    int n = 0,a = 0,b = 0,c = 0,d = 0,cnt = 0;
    while(scanf("%d",&n)!=EOF){
        for(int i = 9;i >= 0;i--){
            a = i;
            for(int j = i; j>= 0;j--){
                b = j;
                for(int k = j;k >= 0;k--){
                    c = k;
                    for(int l = k;l >= 0;l--){
                        d = l;
                        if(a + b + c + d == n)cnt += 4;
                    }
                }
            }
        }
        cout << cnt << endl;
    }
}

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

#define FOR(i,l,r) for(int i = (l);i < (r);i++)
#define ALL(x) (x).begin(),(x).end()
template<typename T> bool chmax(T& a,const T& b){return a < b ? (a = b,true) : false;}
template<typename T> bool chmin(T& a,const T& b){return b < a ? (a = b,true) : false;}
typedef long long ll;

int N;

int main()
{
	while(~scanf("%d",&N)){
		int ans = 0;
		FOR(i,0,10) FOR(j,0,10) FOR(k,0,10) FOR(l,0,10){
			if(i + j + k + l == N) ans++;
		}
		printf("%d\n",ans);
	}

	return 0;
}

C++: #include<iostream>

using namespace std;


int main(void){
	
	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 p=0;p<=9;p++){
						if(i+j+k+p == n)ans++;
					}
				}
			}
		}
		
		cout<<ans<<endl;
	}
}

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

C++: #include <stdio.h>
#include <Windows.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)) == -1 ) 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;
}